Perhaps you should try some spelling variations:
transport system » transport sector
transformed de » transformed _, transformed 1, transformed a
system prior » system pilot
agua el » agua e, aguas del
e der » _ der, 2 der, 3 der
e de » et de, e die, _ de
acao » cacao, macao, cao

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 ((e de) OR (e der)) transport system prior ) OR ( agua el _ transformed de acao ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( agua ((e de) OR (e der)) transport system prior ) or ( agua el _ transformed de acao ))~".
• Adding a wildcard symbol may retrieve word variants: (( agua ((e de) OR (e der)) transport system prior ) or ( agua el _ transformed de acao ))*.