Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
10 communications » 10 communication, 14 communications, 2 communications
trade development » software development
technology used » technology use, technology based, technology users
used innovation » user innovation, use innovation, based innovation
innovation 3 » innovation 1, innovation 4
costs trade » costly trade
de 10 » die 10, de 1, do 10
3 de » 3 die, 3 der, 3 des

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

• Adding a wildcard symbol may retrieve word variants: technology used innovation 3 de 10 communications costs trade development africa _.*.