Perhaps you should try some spelling variations:
communications a » communications _, communications law, communications media
das development » dams development, gas development, does development
development 1.1 » development 2.1, development 2.3, development 2.2
1.1 afrique » 2014 afrique
bei dem » bei der, bei den
bei em » bei bm, bei ex
a das » 1 das, 2 das, 3 das

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologies _ variation ((bei em) OR (bei dem)) data communications a das development 1.1 afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies _ variation ((bei em) OR (bei dem)) data communications a das development 1.1 afrique.*.