Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
population panel » population age, population based, population area
de developpement » sme development
developpement la » developpement de, developpement et, developpement du
technology ties » technology tieups, technology studies, technology thesis
ties population » u.s population, les populations, nations population
panel fig » panel firm, panel i, panel ii
costs de » costs _, costs 4, costs a
fig 2.3 » fig 12.3, fig 2.30, fig 2.35
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 ties population panel fig 2.3 communication costs de developpement la fabrique.*.