Perhaps you should try some spelling variations:
technology change » technological change, technological changes
change population » chinese population, age population, large population
2.3 communication » 3.2 communication, de communication, 4 communication
development avec » development age, development alex, development anew
population area » population age, population africa, population share
sme development » trade development
avec fabric » avec fabrice, woven fabric
costs sme » costs some, costs amy
area fig » area cir
fig 2.3 » fig 12.3, fig 2.30, fig 2.35

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

• Adding a wildcard symbol may retrieve word variants: technology change population area fig 2.3 communication costs sme development avec fabric.*.