Perhaps you should try some spelling variations:
u.s communication » u.s communications, 2.3 communication, 3.2 communication
scale development » estate development, trade development, sme development
risk information » bank information, tourism information, tourist information
information age » information storage, information access, information about
development pt » development path, development plan, development plans
costs scale » cost scale, costs case, costs sales
pt africa » art africa, 1 africa, em africa
age from » case from, care from, rate from

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

• Adding a wildcard symbol may retrieve word variants: technology risk information age from u.s communication costs scale development pt africa.*.