Perhaps you should try some spelling variations:
personal communication » interpersonal communication
communication cost » communication costs, communication costa, communications costs
technologien und » technologie und, technologien des, technologien fur
und informations » und information, und informationen, fund information
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
developing 1 » developing _, developing a, developing e
de personal » der personal, des personal, de persona
cost 3.2 » cost 2.4
1 areas » 1 area, 2 areas, 4 areas
und de » und der, und des, und den

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

• Adding a wildcard symbol may retrieve word variants: technologien und informations und de personal communication cost 3.2 developing 1 areas.*.