Perhaps you should try some spelling variations:
2.30 communication » 2.3 communication, 2.7 communication, 1.3 communication
technology trends » technology thesis, technology trade, technology tools
trends population » ties population, texas population, extremes population
developpement la » developpement de, developpement et, developpement du
a developpement » au developpement, de developpement, le developpement
la afrique » l afrique, la fabrique, en afrique
fig 2.30 » fig 2.3, fig 2.35, fig 2.39
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 trends population p230 fig 2.30 communication costs a developpement la afrique.*.