Perhaps you should try some spelling variations:
water transport » air transport, water transfer
transport law » transport _
transport 2 » transport _, transport a, transport 4
guias use » gas use, gis use, guias de
use water » unsafe water
one idea » one sided, new idea, one side
de idea » new idea, key idea
law a » law _, law 1

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: (( aguas ((de idea) OR (one idea)) transport law a ) OR ( guias use water transport 2 a ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aguas ((de idea) OR (one idea)) transport law a ) or ( guias use water transport 2 a ))~".
• Adding a wildcard symbol may retrieve word variants: (( aguas ((de idea) OR (one idea)) transport law a ) or ( guias use water transport 2 a ))*.