diff --git a/src/services/aphp/callApi.ts b/src/services/aphp/callApi.ts
index afb49b6c7..d6208e25d 100644
--- a/src/services/aphp/callApi.ts
+++ b/src/services/aphp/callApi.ts
@@ -80,7 +80,7 @@ type fetchPatientProps = {
   minBirthdate?: number
   maxBirthdate?: number
   searchBy?: string
-  _text?: string | string[]
+  _text?: string
   deceased?: boolean
   pivotFacet?: ('age-month_gender' | 'deceased_gender')[]
   _elements?: ('id' | 'gender' | 'name' | 'birthDate' | 'deceased' | 'identifier' | 'extension')[]
@@ -117,14 +117,7 @@ export const fetchPatient = async (args: fetchPatientProps): FHIR_Bundle_Promise
   if (offset) options = [...options, `_offset=${offset}`]
   if (_sort) options = [...options, `_sort=${_sortDirection}${_sort}`]
   if (gender) options = [...options, `gender=${gender}`]
-  if (_text && _text.length > 0) {
-    if (Array.isArray(_text)) {
-      const searchInput = _text.map((text) => `${searchBy}=${encodeURIComponent(`"${text}"`)}`).join('&')
-      options = [...options, searchInput]
-    } else {
-      options = [...options, `${searchBy}=${_text}`]
-    }
-  }
+  if (_text) options = [...options, `${searchBy}=${_text}`]
   if (deceased !== undefined) options = [...options, `deceased=${deceased}`]
   if (minBirthdate) options = [...options, `${deidentified ? 'age-month' : 'age-day'}=ge${minBirthdate}`]
   if (maxBirthdate) options = [...options, `${deidentified ? 'age-month' : 'age-day'}=le${maxBirthdate}`]
@@ -955,13 +948,9 @@ const getCodeList = async (
     // if search is * then we fetch the roots of the valueSet
     if (search !== '*' && search !== undefined) {
       // if noStar is true then we search for the code, else we search for the display
-      searchParam = noStar
-        ? `&only-roots=false&code=${encodeURIComponent(
-            search.trim().replace(/[\[\]\/\{\}\(\)\*\?\.\\\^\$\|]/g, '\\$&') //eslint-disable-line
-          )}`
-        : `&only-roots=false&_text=${encodeURIComponent(
-            search.trim().replace(/[\[\]\/\{\}\(\)\*\?\.\\\^\$\|]/g, '\\$&') //eslint-disable-line
-          )}*`
+      searchParam = `&only-roots=false&${noStar ? 'code' : '_tag=text-search-rank&_text'}=${encodeURIComponent(
+        search.trim()
+      )}`
     }
     // TODO test if it returns all the codes without specifying the count
     const res = await apiFhir.get<FHIR_Bundle_Response<ValueSet>>(`/ValueSet?reference=${codeSystem}${searchParam}`, {
diff --git a/src/services/aphp/cohortCreation/fetchObservation.ts b/src/services/aphp/cohortCreation/fetchObservation.ts
index 3e797b5f3..3c537f9b9 100644
--- a/src/services/aphp/cohortCreation/fetchObservation.ts
+++ b/src/services/aphp/cohortCreation/fetchObservation.ts
@@ -26,16 +26,6 @@ export const fetchBiologySearch = async (
   const res = await apiFhir.get<FHIR_Bundle_Response<ConceptMap>>(
     `/ConceptMap?_count=2000&name=Maps%20to,Concept%20Fhir%20Maps%20To&source-system=${BIOLOGY_HIERARCHY_ITM_ANABIO}&target-system=${BIOLOGY_HIERARCHY_ITM_ANABIO},${BIOLOGY_HIERARCHY_ITM_LOINC}&_text=${encodeURIComponent(
       lowerCaseTrimmedSearchInput.replace(/[\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&') // eslint-disable-line
-    )},${encodeURIComponent(
-      `/(.)*${lowerCaseTrimmedSearchInput.replace(/[/"]/g, function (m) {
-        switch (m) {
-          case '/':
-            return '\\/'
-          case '"':
-            return '\\"'
-        }
-        return m
-      })}(.)*/`
     )}`
   )
 
diff --git a/src/services/aphp/serviceCohorts.ts b/src/services/aphp/serviceCohorts.ts
index e72c67057..960f275dd 100644
--- a/src/services/aphp/serviceCohorts.ts
+++ b/src/services/aphp/serviceCohorts.ts
@@ -331,16 +331,6 @@ const servicesCohorts: IServiceCohorts = {
     signal
   ) => {
     try {
-      let _searchInput: string | string[] = ''
-      _searchInput = searchInput
-        .trim() // Remove space before/after search
-        .split(' ') // Split by space (= ['mot1', 'mot2' ...])
-        .filter((elem: string) => elem) // Filter if you have ['mot1', '', 'mot2'] (double space)
-
-      if (searchBy === SearchByTypes.IDENTIFIER) {
-        _searchInput = _searchInput.join()
-      }
-
       // convert birthdates into days or months depending of if it's a deidentified perimeter or not
       const birthdates: [string, string] = [
         moment(substructAgeString(filters?.birthdatesRanges?.[0] || '')).format('MM/DD/YYYY'),
@@ -359,7 +349,7 @@ const servicesCohorts: IServiceCohorts = {
         _list: groupId ? [groupId] : [],
         gender: filters && filters.genders.join(','),
         searchBy,
-        _text: _searchInput,
+        _text: searchInput.trim(),
         minBirthdate: minBirthdate,
         maxBirthdate: maxBirthdate,
         deceased:
diff --git a/src/state/patient.ts b/src/state/patient.ts
index 9fcfe0ef2..51e0fa3dc 100644
--- a/src/state/patient.ts
+++ b/src/state/patient.ts
@@ -115,7 +115,6 @@ const fetchPmsi = createAsyncThunk<FetchPmsiReturn, FetchPmsiParams, { state: Ro
       const patientState = thunkApi.getState().patient
       const index = mapToAttribute(options.selectedTab)
       const currentPmsiState = patientState?.pmsi ? patientState?.pmsi[index] ?? { total: null } : { total: null }
-      const WILDCARD = '*'
 
       const patientId = patientState?.patientInfo?.id ?? ''
       if (!patientId) {
@@ -127,8 +126,7 @@ const fetchPmsi = createAsyncThunk<FetchPmsiReturn, FetchPmsiParams, { state: Ro
       const sortBy = options.searchCriterias.orderBy.orderBy
       const sortDirection = options.searchCriterias.orderBy.orderDirection
       const page = options.page ?? 1
-      const searchInput =
-        options.searchCriterias.searchInput === '' ? '' : options.searchCriterias.searchInput + WILDCARD
+      const searchInput = options.searchCriterias.searchInput === '' ? '' : options.searchCriterias.searchInput
       const codeUrl =
         selectedTab === ResourceType.CLAIM
           ? CLAIM_HIERARCHY