Perhaps you should try some spelling variations:
11.4.1 communication » 10.4.3 communication, 12.4.4 communication, 13.4.5 communication
population based » population age, simulation based, population data
le developpement » de developpement, sme development
developpement la » developpement de, developpement et, developpement du
technology than » technology tax, technology trap, technology change
than population » change population, orphan population, urban population
fig 11.4.1 » fig 11.1
la patrice » la matrice, a patrick, la patria
based fig » based fire, based five, based fm
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 than population based fig 11.4.1 communication costs le developpement la patrice.*.