Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.1 communications » 3.1 communication, 4.1 communication, 1.1 communication
developpement en » developpement et, developpement des, developpement de
technology gaps » technology gap
gaps inflation » has inflation, grade inflation, rapid inflation
inflation als » inflation a, inflation auf, inflation rates
als case » als care, goals case, sales case
case 3.1 » case 4.1, case 3.2, case 1

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

• Adding a wildcard symbol may retrieve word variants: technology gaps inflation als case 3.1 communications costs _ developpement en afrique.*.