Perhaps you should try some spelling variations:
communications case » communication case, communications can, communications code
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
technology 4 » technology _, technology 1, technology 3
4 inflation » _ inflation, 2 inflation, 6 inflation
inflation a » inflation _, inflation tax, inflation rate
price 3 » price a, price 2.3
case du » case d, case d1, case d2

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technology 4 inflation a ((price 3) OR (price _)) communications case du developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology 4 inflation a ((price 3) OR (price _)) communications case du developpement en afrique.*.