Perhaps you should try some spelling variations:
2.4 communication » 2.14 communication, 5.4 communication, 2.3 communication
population share » population size
de developpement » sme development
developpement la » developpement de, developpement et, developpement du
technology u.s » technology uses, technology 2.2, technology use
u.s population » 2.1 population, 2.2 population, 2.3 population
costs de » costs _, costs 4, costs a
fig 2.4 » fig 12.4, fig 2.1, fig 2.2
fabrique. » afrique., fabrice.

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

• Adding a wildcard symbol may retrieve word variants: technology u.s population share fig 2.4 communication costs de developpement la fabrique.*.