Perhaps you should try some spelling variations:
communication cote » communication costs, communication costa, communication case
de communication » mobile communication, online communication
development case » development china
technology 4ir » technology 4, technology 4.1, technology 4.2
relativen debt » relative de
4ir relativen » der relativen, zur relativen, die relativen
debt crises » debt crisis
cote social » code social, close social, more social
case labor » care labor, based labor, male labor
crises de » crises _, crises a, crises 2

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

• Adding a wildcard symbol may retrieve word variants: technology 4ir relativen debt crises de communication cote social development case labor.*.