Perhaps you should try some spelling variations:
guides information » guide information, guided information, aids information
technology guides » technology gaps
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
open development » clean development, driven development, human development
information use » information und, information 2
development en » developpement en, development menu, development eco
costs open » cost open, costs over
use rice » used rice, user price, e 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 guides information use rice 3.1 communication costs open development en afrique.*.