Perhaps you should try some spelling variations:
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
technology aid » technology asia, technology a, technology age
aid inflation » rapid inflation, und inflation, die inflation
inflation tax » inflation rate, inflation _, inflation target
tax prices » gas prices, car prices, tax practices
prices 3.1 » prices 2.1, prices 3.2, prices 2.3.1
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 aid inflation tax prices 3.1 communication costs le developpement en afrique.*.