Perhaps you should try some spelling variations:
5.3 communication » 2.3 communication, 4.3 communication, 1.3 communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
technology wage » technology wages, technology age, technology usage
inflation trade » inflation rate, inflation rates, inflation tax
wage inflation » grade inflation, high inflation, core inflation
policy 5.3 » policy 3.3, policy 2.3, policy 4.3
costs le » 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 wage inflation trade policy 5.3 communication costs le developpement en afrique.*.