Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
technologies 4.2 » technologies 3.2, technologies 4.1, technologies 4.5
4.2 informations » 4.2 information, 2.2 information, 3.2 information
developing food » developing good, developing field, developing fluid
4 developing » 3 developing
food access » road access
a mobile » _ mobile
costs 4 » costs _, costs a, costs 4.2
und a » und _, und 2, und 3

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

• Adding a wildcard symbol may retrieve word variants: technologies 4.2 informations und a mobile communications costs 4 developing food access.*.