Perhaps you should try some spelling variations:
scarce communication » scale communication, space communication, science communication
2.1 development » 3.1 development, 2.3 development, 2.2 development
development lie » development life, development li, development lid
technologies 4 » technologies _
4 interaction » 4 interactions, 2 interaction, 3 interaction
interaction 4 » interaction _, interaction 1, interaction a
data scarce » data source, data sparse, data sources
lie afrique » l afrique
costs 2.1 » costs 2.3, costs 4.1, costs 2.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 interaction 4 data scarce communication costs 2.1 development lie afrique.*.