sub find_entries
{

	my $sql = "SELECT * " .
			  "FROM foo " . 
			  "WHERE this " .
              "LIKE '%" . $this . "%' " .
              "AND that " .
              "LIKE '%" . $that . "%' " .
              "AND other " .
              "LIKE '%" . $other . "%'";

	my $sth = $dbh->prepare($sql);
	$sth->execute;
    ...
    
    return $entries;

}