Perhaps you should try some spelling variations:
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
inflation rates » inflation rate
technology gap » technology 1, technology 2.2, technology 3
gap inflation » has inflation, grade inflation, rapid inflation
rates private » rate private, patents private, related private
private 4.2 » private 1.2, private 1.1, private 3.3
costs le » 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 gap inflation rates private 4.2 communication costs le developpement en afrique.*.