Perhaps you should try some spelling variations:
et developpements » et developpement, des developpements, en developpement
developpements en » developpement en, developpement et, developpements de
4 communications » 14 communications, 4 communication, 2 communications
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
table db » table b, table de, table 1b
db 4 » db 14, b 4, d 4

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

• Adding a wildcard symbol may retrieve word variants: technologies a information table db 4 communications _ et developpements en afrique.*.