Perhaps you should try some spelling variations:
transport system » transport sector
a transformer » _ transformer, a transformed, 3 transformer
de transport » sea transport, free transport, bus transport
system pt » system 1
1 macro » _ macro, a macro, 3 macro
2 macro » _ macro, a macro
e a » et a

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: (( agua _ de transport system pt ) OR ( agua e a transformer ((1 macro) OR (2 macro)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( agua _ de transport system pt ) or ( agua e a transformer ((1 macro) OR (2 macro)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( agua _ de transport system pt ) or ( agua e a transformer ((1 macro) OR (2 macro)) ))*.