modifying lt_selection_parms to add our selection filter

Hi,

When I login into web UI, and click search button of accouts, I receive 3 partners.

When I debug the search button of account search, I see that lt_selection_parms is filled with 2 selection parameters like RELTYP and REL_TYPE. Which is the reason for meto receive only 3 partners,

When I remove the selection fields of lt_selection_parms in debug, I get all the partners list.

So, how do I remove the fields which are appended to lt_selection_parms programatically,. so that I receive all partners list.

Thanks

Madhukar