Perhaps you should try some spelling variations:
rates transfers » water transfers, related transfers, arms transfers
idea transport » ideas transport, sea transport, de transport
pedro a » pedro da, pedro e, pedro de
guide a » guide _
a idea » _ idea, 1 idea, 2 idea
guias » guia
wage » wages, page, age

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: (( guias wage rates transfers ((pedro a) OR (pedro c)) ) OR ( guide a idea transport _ cacao ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( guias wage rates transfers ((pedro a) OR (pedro c)) ) or ( guide a idea transport _ cacao ))~".
• Adding a wildcard symbol may retrieve word variants: (( guias wage rates transfers ((pedro a) OR (pedro c)) ) or ( guide a idea transport _ cacao ))*.