Perhaps you should try some spelling variations:
5.4 communication » de communication, data communication
la developpement » le developpement, de developpement, et developpement
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
technology 4.1 » technology 3.1, technology 2.1, technology 1
4.1 inflation » 5.4.1 inflation, 2.3 inflation, 3.2 inflation
inflation tax » inflation rate, inflation _, inflation target
tax sources » 3a sources, data sources, east sources
sources 5.4 » sources 2.4, sources 5.1, sources 3.2
3 la » 3 a, a la, _ la

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

• Adding a wildcard symbol may retrieve word variants: technology 4.1 inflation tax sources 5.4 communication 3 la developpement en afrique.*.