Perhaps you should try some spelling variations:
vector interaction » sector interactions, actor interaction, sector integration
technology vector » technology sector, technology sectoral, technology section
3.2 communication » 3 communication, 2.3 communication, de communication
interaction term » interaction _
developing 2.2 » developing _, developing a, developing e
term process » reform process
4 developing » 3 developing
process 3.2 » process 2.2
2.2 afrique » 2014 afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology vector interaction term process 3.2 communication costs 4 developing 2.2 afrique.*.