Perhaps you should try some spelling variations:
through communication » through community, health communication, through competition
communication cost » communication costs, communication costa, communications costs
urban development » human development
development case » development china
income through » incomes through, come through, came through
relations 2.1 » relations 3.1, relations 1, relations _
technology a » technology 1, technology 3, technology 4
a relations » 3 relations, a relation, 1 relations
2.1 income » 2 income
cost urban » most urban, worst urban, bust urban
case can » case case, case c

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

• Adding a wildcard symbol may retrieve word variants: technology a relations 2.1 income through communication cost urban development case can.*.