Perhaps you should try some spelling variations:
open communication » human communication, 3 communication, 4 communication
peter development » better development, center development, water development
development aid » development a, development africa, development agenda
technology 1 » technology _
1 relations » 3 relations, a relations, 1.2 relations
relations 1 » relations _, relations a, relations 3
crisis open » crisis one, crisis over, crisis onset
costs peter » costs per, costs water, costs matter
1 crisis » 19 crisis

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

• Adding a wildcard symbol may retrieve word variants: technology 1 relations 1 crisis open communication costs peter development aid aortic.*.