Perhaps you should try some spelling variations:
technology volume » technologies volume, seismology volume, technology evolution
de communication » mobile communication, online communication
au developpement » du developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
state case » states case, states cases, state based
volume 7a » volume 7, volume 3a, volume 7b
l afrique » en afrique
7a state » a state, day state, era state
costs au » costs a, costs amy, costs _
case de » case des, case d, case d1

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

• Adding a wildcard symbol may retrieve word variants: technology volume 7a state case de communication costs au developpement l afrique.*.