Perhaps you should try some spelling variations:
development master » development matters, development chapter, development pattern
technology theory » technology thesis, technology other, technology history
theory attention » theory tension, other's attention, theory extensions
de communication » mobile communication, online communication
attention over » attention der, attention model, contention over
4 development » 2 development, 4 developing
over post » other post, otter post, der post
master a » master _, master 2, master 3
post de » post des, post deng
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology theory attention over post de communication costs 4 development master a.*.