Perhaps you should try some spelling variations:
2.3.1.2 communication » 2.3.1.1 communication, 2.2.5.4 communication, 3.2.3.2 communication
developpement et » developpement des, developpement de, development east
technology boar » technology book, technology best, technology 4ir
boar population » boar populations, boor population, poor population
a developpement » au developpement, de developpement, le developpement
population per » population panel, population p230, population area
fig 2.3.1.2 » fig 2.3.1.3, fig 2.3.1.4, fig 2.3.1.5
et france » en france, west france, art france
per fig » per firm
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 boar population per fig 2.3.1.2 communication costs a developpement et france.*.