Perhaps you should try some spelling variations:
developpement de » developpement des, developpement durable
au developpement » du developpement, de developpement, le developpement
a communication » la communication, data communication, data communications
technology gap » technology 1, technology 2.2, technology 3
gap inflation » has inflation, grade inflation, rapid inflation
inflation a » inflation _, inflation tax, inflation rate
de afrique » de l'afrique, en afrique, l afrique
a prices » a price, 2 prices, gas prices
prices a » prices _
costs au » costs a, costs amy, costs _

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

• Adding a wildcard symbol may retrieve word variants: technology gap inflation a prices a communication costs au developpement de afrique.*.