Perhaps you should try some spelling variations:
development enters » development centers, development center, development entry
clean development » human development, urban development
de communication » mobile communication, online communication
technology aids » technology a, technology age, technology asia
prevention de » prevencion de, prevention du, prevention _
de practice » dem practice, de practica, do practice
practice de » practice d, practice deal, practice 1
costs clean » costs clear
enters a » enters _, enter _, waters a

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology aids prevention de practice de communication costs clean development enters a.*.