Perhaps you should try some spelling variations:
un sombrero » _ sombrero
una kala » una scala, una dama, una data
una cala » una scala, una carta, una causa
una casa » la casa, da casa, a casa
a un » _ un

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: con ((una kala) OR (((una cala) OR (una casa)))) a un sombrero.
• The words AND, OR and NOT may confuse the search; try adding quotes: "con ((una kala) or (((una cala) OR (una casa)))) a un sombrero".
• Adding a wildcard symbol may retrieve word variants: con ((una kala) or (((una cala) OR (una casa)))) a un sombrero*.