Perhaps you should try some spelling variations:
3.4.2 communication » 3.3.2 communication, 3.4.1 communication, 3.4.4 communication
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
technology gap » technology 1, technology 2.2, technology 3
inflation crop » inflation co, inflation from, inflation rob
gap inflation » has inflation, grade inflation, rapid inflation
prices 3.4.2 » prices 3.3.2, prices 8.4.2, prices 2.2.2
de fabrique » la fabrique, de l'afrique
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology gap inflation crop prices 3.4.2 communication costs a developpement de fabrique.*.