Perhaps you should try some spelling variations:
transit system » transit systems, transport system, transport systems
des transfers » net transfers, cash transfers, arms transfers
transfers und » transfer und, transfers united, transfers made
data transit » data transport, data transfer, mass transit
system can » systems can, system change
vague de » vagues de, langue de, vue de
und echo » kind echo, und ehe
guias de » guia de, guide de, aguas de
de data » e data, wide data, de datos
de des » ende des, rede des, code des

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: (( vague de des transfers und echo ) OR ( guias de data transit system can ))~.
• Adding a wildcard symbol may retrieve word variants: (( vague de des transfers und echo ) or ( guias de data transit system can ))*.