Perhaps you should try some spelling variations:
communication cross » communication costs
de communication » mobile communication, online communication
technologies de » technologies _, technologies 4, technologies 2
developing east » development east, developing a, developing asia
de information » die information, de informacion, e information
3 developing » 3 development
3.2 aid » 3.2 ai, 3.2 ad, 3.2 add
cross 3 » cross _, cross 1, cross c
aid de » aid do, aid debt, aid does
areal. » areas., area., real.

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

• Adding a wildcard symbol may retrieve word variants: technologies de information 3.2 aid de communication cross 3 developing east areal.*.