Perhaps you should try some spelling variations:
2.3.1.4 communication » 2.3.1.1 communication, 2.2.5.4 communication, 2.14 communication
technology trade » technology trends, technology transfer, technology transfers
trade population » create population, france population, age population
population panel » population age, population based, population area
le developpement » de developpement, sme development
developpement la » developpement de, developpement et, developpement du
la fabrice » la fabrique, la matrice, la farce
i 2.3.1.4 » fig 2.3.1.4, i3 1.3.1.4
costs le » costs _, costs 4, costs a
panel i » panel ii, panel iv, panel ix

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

• Adding a wildcard symbol may retrieve word variants: technology trade population panel i 2.3.1.4 communication costs le developpement la fabrice.*.