Perhaps you should try some spelling variations:
technology sector » technology series, technology social
sector functional » sector functions, aspects functional, der functional
c's communication » lea's communication, class communication, mass communication
2.3 development » 2 development, 2015 development, 1 development
development did » development desd, development d, development doi
functional 2 » functional _, functional 3, functional mri
formen c's » formen des, formen das
did africa » did africa's, aid african, de africa
costs 2.3 » costs 4.2, costs 4.4

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

• Adding a wildcard symbol may retrieve word variants: technology sector functional 2 formen c's communication costs 2.3 development did africa.*.