Search improvements

[ptbrowne]

Still using server side search, but improving the search by using lunr.

• Better support for acronyms (OFPP returns correct results, MFM-U returns correct results), fix Search full words #105
• Less fuzzy search fix Search datasets - Character String #96 Search in Step 1 doesn't really filter out the typed in word as least for the word "Anzahl" #180
• Ability to search inside themes / creator
• Stemming

Fix #258

[ptbrowne]

@FabianCretton, @pdumas, @ortnever I'd be interested on your feedback concerning the search on this deployment. I think it's much better than before. I want to know if I include this in the release of Monday. Thanks !

You can test here: https://visualize-ad-search-lk1hpzdeez.herokuapp.com/fr/browse

cc @sosiology

[ortnever]

Thanks for this improvment.
It works great but unfortunately only if the keyword is in the title. As the title is often very short, it requires very precise keywords. Would it be possible to do exactly the same thing by also looking for the word in the description?

[ptbrowne]

Can you give me your search @ortnever ? The search should works in the description:

Additionally, it searches in the themes, in the creator, and in the keywords (that are not displayed yet on visualize).

[ortnever]

It was "coli" but I tried again and it works.
It is very good.
To be deployed on Monday if you are sure there are no side effects elsewhere but there is no reason why the research should influence anything else.

[FabianCretton]

i did only a small test, but yes, looks much better, thanks!

[bprusinowski]

LGTM! Works much better than before 👌