Perhaps you should try some spelling variations:
information database » information table
alter communication » master communication, matter communication, water communication
developpement en » developpement et, developpement des, developpement de
2 developpement » de developpement, le developpement, et developpement
technologies 4 » technologies _
4 information » 2 information, 1 information
database 2.1 » databases 2.1, database 2.0, database 2.2
2.1 alter » 1.1 alter, 7.1 altere, 2.2.1 altere

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information database 2.1 alter communication a 2 developpement en afrique.*.