Perhaps you should try some spelling variations:
des developpements » deux developpements, de developpement, et developpements
communication case » communications case, communication based, communication phase
2.5 communication » 2.3 communication, 2.7 communication, 3.5 communication
developpements en » developpement en, developpement et, developpements de
technology needs » technology new
needs inflation » does inflation, needs innovations, versus inflation
inflation rates » inflation rate
rates rule » bayes rule, rate rules, rates reduce
rule 2.5 » ruble 2.5, rule 2.2, rule 8.5
case des » cases des, case das, phase des

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

• Adding a wildcard symbol may retrieve word variants: technology needs inflation rates rule 2.5 communication case des developpements en afrique.*.