Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
technology theory » technology thesis, technology other, technology history
theory extensions » theory extending, theory tension, core extensions
data developments » data development, rate developments, later developments
developments from » development from, developments after, developments _
extensions from » extension from, attentions from, exclusions from
costs data » cost data
de online » der online, des online, die online
from care » from case, from cape, from cash
from de » from dem, from deep

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

• Adding a wildcard symbol may retrieve word variants: technology theory extensions from de online communication costs data developments from care.*.