Botiga Ajax Search not working accurately

I am using the free version of Botiga theme. The Ajax search results are not accurate. For example I have a product with title “Stropping compound bars”. Now when I search with the keyword “Stropping”, The product doesn’t shows and When I search with the keyword “Bar”, the product shows but on 5th number (although it should come up on top because no other product is using the keyword “bar”).
So accuracy is the problem. Please revert back

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