Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
integration wage » integration wege, integration wie, integration work
dis integration » disintegration _
amy development » key development, fly development, soy development
technology dis » technology does, technology 4ir, technology dlt
development de » development d, development ds, developpement de
wage trade » wages trade, wage rate, jade trade
de afrique » de l'afrique, en afrique, l afrique
trade 6.2 » trade 2.2, trade 3.2, trade 4.2
costs amy » 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 wage trade 6.2 communication costs amy development de afrique.*.