Perhaps you should try some spelling variations:
integration roles » integration regimes, integration reforms, integration points
port development » export development, airport development, forest development
dis integration » disintegration _
4 communication » 3 communication, 5.4 communication, de communication
technology dis » technology does, technology 4ir, technology dlt
development de » development d, development ds, developpement de
roles trade » rules trade, does trade, prices trade
trade 4 » trade _, trade 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 roles trade 4 communication _ port development de l'afrique.*.