Perhaps you should try some spelling variations:
table communication » mobile communication, time communication, face communication
communication cost » communication costs, communication costa, communications costs
technology use » technology 1, technology 2.2, technology 3
use regularity » use regulation, _ regularity, 3 regularity
policies table » politics table, policies take, policies trade
regularity 5 » regularity _, regularity 1, regularity 2
cost sector » cost vector, port sector, forest sector
5 policies » 3 policies, 2 policies, 4 policies
china part » china past, china pearl, china path

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

• Adding a wildcard symbol may retrieve word variants: technology use regularity 5 policies table communication cost sector development china part.*.