Perhaps you should try some spelling variations:
communication cases » communication case, communication costs, communication based
based information » basic information, based innovation, land information
1.3 communication » 2.3 communication, 13 communication, 4.3 communication
per developpement » leur developpement, de developpement, le developpement
information rate » information ratio, information related, information matter
developpement en » developpement et, developpement des, developpement de
rate rule » rate rules, trade rule
cases per » cases open, cases over, cases part
rule 1.3 » rule 17.3, rule 3.3, rule 6.3

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

• Adding a wildcard symbol may retrieve word variants: technology based information rate rule 1.3 communication cases per developpement en afrique.*.