Perhaps you should try some spelling variations:
communication paper » communication power, communication pattern, communication partner
3.3 communication » 2.3 communication, 3.2 communication, 3.5 communication
technology trade » technology trends, technology transfer, technology transfers
developpement en » developpement et, developpement des, developpement de
trade sanctions » trade transactions
sanctions rates » sanctions case, sanctions patterns, sanctions process
e developpement » de developpement, le developpement, et developpement
space 3.3 » space 3.2, space 2.1, space 2.2
paper e » paper _, paper i, paper 1

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

• Adding a wildcard symbol may retrieve word variants: technology trade sanctions rates space 3.3 communication paper e developpement en afrique.*.