Perhaps you should try some spelling variations:
mexicano » mexican, mexicana
americano » americans, americana, america
americanos » americanss, americanas, americas, americans, americana
americains » americans, americas, americana
americanus » americans, americas, americana

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((mexico OR (mexicano OR (americano OR americains))) OR (americanos OR americanus)) OR american) / united states.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((mexico or (mexicano or (americano or americains))) or (americanos OR americanus)) or american) / united states".
• Adding a wildcard symbol may retrieve word variants: (((mexico or (mexicano or (americano or americains))) or (americanos OR americanus)) or american) / united states*.