Perhaps you should try some spelling variations:
rris developpement » rris development, de developpement, le developpement
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
developpement en » developpement et, developpement des, developpement de
technology gaps » technology gap
gaps inflation » has inflation, grade inflation, rapid inflation
inflation gate » inflation rate, inflation rates, inflation taxes
gate prices » water prices, gate process, base prices
prices 3.1 » prices 2.1, prices 3.2, prices 2.3.1
costs rris » costs res, costs rise, costs risk

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

• Adding a wildcard symbol may retrieve word variants: technology gaps inflation gate prices 3.1 communication costs rris developpement en afrique.*.