Perhaps you should try some spelling variations:
customs information » customer information, business information
technology customs » technology clusters, technology costs, technology history
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
developpement et » developpement des, developpement de, development east
e developpement » de developpement, le developpement, et developpement
information 1 » information 2, information 3, information 3.2
et afrique » en afrique, l afrique
case 2.7 » case 2.3, case 2.1, case 2.2
costs e » costs _, costs 4, costs a
1 case » 3.1 case, 4.1 case

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

• Adding a wildcard symbol may retrieve word variants: technology customs information 1 case 2.7 communication costs e developpement et afrique.*.