Perhaps you should try some spelling variations:
6.13 communication » 6.1.3 communication, 2.3 communication, 4.1 communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
technology die » technologie die, technology does, technology 4ir
inflation ages » inflation rates, inflation taxes, inflation als
die inflation » does inflation, der inflation, price inflation
ages case » wages case, age case, cases case
case 6.13 » case 6.3, case 6.1, case 6.12
costs de » 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 die inflation ages case 6.13 communication costs de developpement en afrique.*.