Perhaps you should try some spelling variations:
transit system » transit systems, transport system, transport systems
transfers ein » transfers ai, transfers bei, transfers end
data transit » data transport, data transfer, mass transit
system can » systems can, system change
guias cge » guias de
ein echo » ein recht, kind echo
cge data » age data, wage data, care data
de des » ende des, code des, de deces

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 ((de des) OR (rede des)) transfers ein echo ) OR ( guias cge data transit system can ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( guias ((de des) OR (rede des)) transfers ein echo ) or ( guias cge data transit system can ))~".
• Adding a wildcard symbol may retrieve word variants: (( guias ((de des) OR (rede des)) transfers ein echo ) or ( guias cge data transit system can ))*.