Search Results Question

Hi there, Just wondering why I am not able to get a keyword search to return all the results available. Do you see anything obvious I am doing wrong here?

For example:

This query only returns 3 yachts:

https://www.sailconnections.com/yachts.php?yacht_type=2&charter_type=1&yacht_name_query%2Cmeta_description_query%2Cintro_query%2Cdescription_query=Lagoon

If I search in the admin I get 10 results (see attached)

If I remove the keyword and just search for yacht_type and charter_type I can see there are 10 yachts with the name Lagoon:

https://www.sailconnections.com/yachts.php?yacht_type=2&charter_type=1

If I remove the other fields from the keyword search it does work:

https://www.sailconnections.com/yachts.php?yacht_type=2&charter_type=1&yacht_name_query=Lagoon

e.g. yacht_name_query%2Cmeta_description_query%2Cintro_query%2Cdescription_query=Lagoon >> yacht_name_query=Lagoon

so maybe Im doing something wrong with that, can you only have one query field?

Any suggestions?