Perhaps you should try some spelling variations:
communications paths » communication paths, communications pt, communications water
south communications » mouth communications, month communication, truth communication
selection 17.3 » selection 13.3, selection 1.3, selection 14.3
been developed » between developed, less developed, both developed
technology 1 » technology _
1 selection » 2 selection, 4 selection, 3.1 selection
trade south » trade routes
developed 3 » developed _, developed 4, developed 5
17.3 trade » 12.3 trade, 5.3 trade, 3.3 trade
paths been » paths between
3 action » 3 actions, 2 action, 4 action

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

• Adding a wildcard symbol may retrieve word variants: technology 1 selection 17.3 trade south communications paths been developed 3 action.*.