Perhaps you should try some spelling variations:
personal communication » interpersonal communication
communication cost » communication costs, communication costa, communications costs
information 1.1.3 » information 13.1.3, information 11.3, information 3.1.3
technologien der » technologien des, technologie der, technologien fur
der information » insider information, sector information, labor information
developing asia » development asia, developing a
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
asia access » basic access, basin access, asia across
1 personal » a personal, 4 personal, 1945 personal
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
1.1.3 1 » 1.1.3 _, 1.1.3 a, 1.1.3 do

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

• Adding a wildcard symbol may retrieve word variants: technologien der information 1.1.3 1 personal communication cost 2.2 developing asia access.*.