Perhaps you should try some spelling variations:
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
en developpement » et developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
age information » care information, rate information, die information
technology age » technology usage, technology wages, technology a
table prices » stable prices, cattle prices, maize prices
prices 2.1 » prices 2.4, prices 2.3, prices 3.1
de afrique » de l'afrique, en afrique, l afrique
costs en » 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 age information table prices 2.1 communication costs en developpement de afrique.*.