Perhaps you should try some spelling variations:
value communication » failure communication, face communication, voice communication
oil development » rail development, tool development, social development
technology 2.2 » technology _, technology 1, technology 3
relativen debt » relative de
2.2 relativen » 2.2 relative, 2.2 relatives, 2.2 relationen
crises value » crisis value, crises volume, ascribes value
debt crises » debt crisis
china labor » china labour, china's labor, child labor
costs oil » costs only, costs ii, costs iii

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

• Adding a wildcard symbol may retrieve word variants: technology 2.2 relativen debt crises value communication costs oil development china labor.*.