Perhaps you should try some spelling variations:
ring interaction » rna interaction, during interactions, string interactions
27 communication » 2.7 communication, 7 communication, 2 communication
developpement en » developpement et, developpement des, developpement de
technology ring » technology during, technology brings, technology using
a developpement » au developpement, de developpement, le developpement
interaction 4 » interaction _, interaction 1, interaction a
political 27 » political 2, political _, political 1
4 political » 2 political
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology ring interaction 4 political 27 communication costs a developpement en afrique.*.