Perhaps you should try some spelling variations:
river development » driven development, water development, power development
do communication » do communications, de communication, ngo communication
development case » development china
technology 5 » technology _, technology 1, technology 3
relation 5.5 » relations 5.5, relation 4.5, relation 5.3
costs river » costs drivers, costs over, costs rise
5 relation » _ relation, 5 regulation, la relation
case case » base case, case based, use case
5.5 role » 3.5 role
role do » role de, role du, role des

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

• Adding a wildcard symbol may retrieve word variants: technology 5 relation 5.5 role do communication costs river development case case.*.