What is the solution to be able to search Magento 2 catalog with less than three characters.

This is what i have done so far from looking at Magento 1 info regarding this issue.

Setting "Max Query Lengt" in backend to 2<br>
Changed the mysql setting ft_min_word_len=2 and restarted the server.
reindex and clear cache.

I have also tried to move the following indexing tables to MyISAM and then run a REPAIR QUICK on them and update the indexes

    catalogsearch_fulltext_scope1
    cms_block
    cms_page
    customer_grid_flat
    sales_creditmemo_grid
    sales_invoice_grid
    sales_order_grid
    sales_shipment_grid
    catalogsearch_fulltext

The tricky thing with this is that bin/magento indexer:reindex changes them back to InnoBD. Don't know if they are dropped and recreated or how that happens but that's my result after a magento reindex.<br>
The enginge change, repair, flushing and so on is done after magento reindex.

If anyone have an idea where to go from here i would be quite happy?

Thanks in advance<br>
Thomas