Perhaps you should try some spelling variations:
models communications » modern communications, modern communication, zones communications
communications costs » communication costs, communications _
technologies gap » technologies a, technologies can, technologies am
improving patent » improving patient, improving payment, improving talent
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
gap improving » up improving, ghana improving, data improving
patent policy » patent policies, salient policy, recent policy
policy models » policy makers, policy middle, policy moral
l afrique » en afrique
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologies gap improving patent policy models communications costs a developpement l afrique.*.