Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
development aid » development a, development africa, development agenda
technology set » technology sector, technology 1, technology 2.2
set relations » et relations, des relations, eu relations
costs career » costs chapter, costs case, costs clear
relations 1 » relations _, relations a, relations 3
crisis de » crisis del, crisis due, crisis debt
1 crisis » 19 crisis

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

• Adding a wildcard symbol may retrieve word variants: technology set relations 1 crisis de communication costs career development aid aortic.*.