Perhaps you should try some spelling variations:
personal communication » interpersonal communication
aids information » chandos information, series information
information gaps » information gap
typologies aids » typologies first, typologies art, typologies third
der personal » der personalen, der personen, der person
a afrique » l afrique, en afrique
gaps der » kamps der, dass der, das der
systems » system

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

• Adding a wildcard symbol may retrieve word variants: typologies aids information gaps der personal communication systems a development a afrique.*.