Perhaps you should try some spelling variations:
cooperation costs » operation costs, cooperation across, cooperation case
de developpement » sme development
information pt » information part, information 1, information 1.2
wave sector » wage sector, wave vector, waste sector
des afrique » en afrique, de l'afrique
costs de » costs _, costs 4, costs a
pt wave » p wave

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

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