Perhaps you should try some spelling variations:
thread communication » ihrd communication, real communication, outbreak communication
communication cost » communication costs, communication costa, communications costs
local development » social development, global development, rural development
development case » development china
technology 4.2 » technology 2.2, technology 3.2, technology 4.1
relativen debt » relative de
4.2 relativen » 4.2 relation, 2.2 relative, 1.2 relative
crises thread » crises korea, crises great, crises lead
debt crises » debt crisis
cost local » boost local, past local
case labor » care labor, based labor, male labor

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

• Adding a wildcard symbol may retrieve word variants: technology 4.2 relativen debt crises thread communication cost local development case labor.*.