Perhaps you should try some spelling variations:
cooperation costs » operation costs, cooperation across, cooperation case
de developpement » sme development
information age » information storage, information access, information about
wave sector » wage sector, wave vector, waste sector
des afrique » en afrique, de l'afrique
age wave » age cave, a wave, age age
costs de » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology _ information age wave sector cooperation costs de developpement des afrique.*.