Perhaps you should try some spelling variations:
communication theory » communication technology
clean development » human development, urban development
rate information » trade information, care information, age information
de communication » mobile communication, online communication
development goal » development goals
technology rate » technology state, technology role, technology related
information 1.2 » information 1.5.2, information 2
theory clean » theory can, theory clark
goal african » agoa african, goals africa, glass african
1.2 i » 1.2 im, 1.2 _, 1.2 a
i de » i die, i der, i den

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

• Adding a wildcard symbol may retrieve word variants: technology rate information 1.2 i de communication theory clean development goal african.*.