This is indeed a case of some records matching only on vector search but not on keyword search. Let's take the

Cimentacion

document as example. It does not contain the word

pádel

so it does not match in keyword search. Nevertheless we highlight any words in the query present in the document, even if that document was found via vector search. This is why

tokens_matched

is also 0. Look into

drop_tokens_threshold

if you want keyword search to match partial words from the query.