Perhaps you should try some spelling variations:
rap championships » _ championships, win championships, world championships
mexican national » american national, mexico's national, african national
a championship » _ championship

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "mexican national radio ((rap championships) OR (a championship))".
• Adding a wildcard symbol may retrieve word variants: mexican national radio ((rap championships) OR (a championship))*.