Perhaps you should try some spelling variations:
information search » information sharing, information service, information sources
1.1 communication » 4.1 communication, 1.3 communication, 1.4 communication
gap information » sap information, amp information, erp information
technology gap » technology 1, technology 2.2, technology 3
search spaces » search space, search sources, search games
developing en » developing e, developing eq, developing egg
4 developing » 3 developing
spaces 1.1 » spaces 2.1
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology gap information search spaces 1.1 communication costs 4 developing en afrique.*.