Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
developing east » development east, developing a, developing asia
information 1 » information 2, information 3, information 3.2
des personal » des personals, der personal, das personal
4 developing » 3 developing
east animal » et animal, based animal, meat animals
1 des » 1 das, 1 der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information 1 des personal communications _ 4 developing east animal.*.