Perhaps you should try some spelling variations:
3.5 communication » 3.2 communication, 3 communication, 2.3 communication
developpement en » developpement et, developpement des, developpement de
4 developpement » de developpement, le developpement, et developpement
section tax » section a, section two, section ix
tax take » tax table, tax base, tax tax
take 3.5 » stake 3.6
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 _ section tax take 3.5 communication costs 4 developpement en afrique.*.