Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
south communications » mouth communications, month communication, truth communication
technology change » technological change, technological changes
change relations » exchange relations, change relationship, changing relations
development case » development china
relations 2.3 » relations 2.1, relations 6.3, relations 4.3
case south » cape south, cost south, age south
2.3 case » 12.3 case, 3.3 case, 5.3 case
costs 2 » costs 20, costs _, costs 4
eine. » line.

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

• Adding a wildcard symbol may retrieve word variants: technology change relations 2.3 case south communications costs 2 development case eine.*.