Perhaps you should try some spelling variations:
data communication » data communications
separation among » separation using, starvation among, cooperation among
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
der separation » order separation, air separation, ree separation
apologien der » typologien der, apologie des, ideologien der
among trial » among typical, among formal, among social
trial data » real data
3 de » 3 die, 3 der, 3 des

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

• Adding a wildcard symbol may retrieve word variants: apologien der separation among trial data communication 3 de developpement en afrique.*.