Perhaps you should try some spelling variations:
2.3 communications » 2.3 communication, 4.3 communication, 1.3 communication
integration pork » integration work, integration post, integration report
de developpement » sme development
dis integration » disintegration _
technology dis » technology does, technology 4ir, technology dlt
des afrique » en afrique, de l'afrique
pork trade » book trade, export trade, import trade
trade 2.3 » trade 2.2, trade 2.1, trade 1.3

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

• Adding a wildcard symbol may retrieve word variants: technology dis integration pork trade 2.3 communications _ de developpement des afrique.*.