Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
true communication » truth communication, time communication, stroke communication
rural development » social development
development from » development forum, development fund
technology 1.1 » technology 3.1, technology 2.1, technology 4.1
1.1 relations » 1.2 relations, 1.4 relations, 8.1 relations
relations mo » relations _, relations a, relations 3
der true » der treue, der tree, der traum
mo der » ho der

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

• Adding a wildcard symbol may retrieve word variants: technology 1.1 relations mo der true communication cost rural development from data.*.