Perhaps you should try some spelling variations:
6.4.3 communication » 6.1.3 communication, 6.2.4.3 communication, 10.4.3 communication
communication case » communications case, communication based, communication phase
das developpements » des developpements, deux developpements, de developpement
developpements en » developpement en, developpement et, developpements de
technology mara » technology moral, technology make, technology more
mara inflation » area inflation, market inflation, markup inflation
inflation auf » inflation a, inflation rate, inflation _
rule 6.4.3 » rules 6.4.3, rule 2.4.3, rule 6.4.2
auf rule » auf reale, a rule, anc rule
case das » case des, case case, case data

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

• Adding a wildcard symbol may retrieve word variants: technology mara inflation auf rule 6.4.3 communication case das developpements en afrique.*.