Perhaps you should try some spelling variations:
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
technology texas » technology thesis, technology trends, technology tieups
texas population » ties population, vas population, cells populations
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
fig 2.7 » figs 2.7, fig 2.1, fig 2.2
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology texas population p230 fig 2.7 communication costs 4 developpement l afrique.*.