Perhaps you should try some spelling variations:
oral communication » personal communication
test development » forest development, port development, mena development
variation among » starvation among, formation among, variation von
development et » development east, developpement et, development eco
apologien der » typologien der, apologie des, ideologien der
der variation » de variation, does variation, die variation
et afrique » en afrique, l afrique
among les » among males, among heis, among jews
les oral » new oral, u.s oral, vs oral

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

• Adding a wildcard symbol may retrieve word variants: apologien der variation among les oral communication a test development et afrique.*.