Perhaps you should try some spelling variations:
guide information » guided information, inside information, price information
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
technology guide » technology guides, technology guidance, technology gender
open development » clean development, driven development, human development
information age » information storage, information access, information about
development eco » development second, development east, development menu
eco afrique » en afrique
costs open » cost open, costs over
age rice » age race, e rice, use rice
rice 3.1 » rice 2.1, rice 3.3, rice 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology guide information age rice 3.1 communication costs open development eco afrique.*.