Perhaps you should try some spelling variations:
developing farmers » developing areas, developing forms, developing managers
information 5.2.1 » information 5.2.2, information 5.3.1, information 3.2.1
une communication » d'une communication, ante communication, de communication
technologies 2 » technologies _, technologies 4
4.2 developing » 2.2 developing, 3.2 developing, 4.1 developing
5.2.1 das » 3.2.1 das, 2.2.1 das, 1.2.1 das
das une » dans une, das un, pas une

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 5.2.1 das une communication costs 4.2 developing farmers access.*.