Perhaps you should try some spelling variations:
information space » information search, information service, information science
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
gap information » sap information, amp information, erp information
technology gap » technology 1, technology 2.2, technology 3
developing en » developing e, developing eq, developing egg
space spaces » spaces spaces, space space, safe spaces
4 developing » 3 developing
spaces 4.1 » space 4.1, 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 space spaces 4.1 communication costs 4 developing en afrique.*.