Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.1 communications » 3.1 communication, 4.1 communication, 1.1 communication
development other » development over, development further, development whither
integration wege » integration wage, integration wie, integration work
dis integration » disintegration _
technology dis » technology does, technology 4ir, technology dlt
e development » sme development, mine development, site development
other african » southern african, three african
wege trade » we trade
trade 3.1 » trade 3.2, trade 4.1, trade 2.1
costs e » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology dis integration wege trade 3.1 communications costs e development other african.*.