Perhaps you should try some spelling variations:
communication can » communication canada, communication china, communication 3
do developpement » de developpement, du developpement, le developpement
developpement en » developpement et, developpement des, developpement de
inflation tax » inflation rate, inflation _, inflation target
technology 4 » technology _, technology 1, technology 3
4 inflation » _ inflation, 2 inflation, 6 inflation
re de » fe de, me de, re re

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 tax ((re de) OR (re di)) communication can do developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology 4 inflation tax ((re de) OR (re di)) communication can do developpement en afrique.*.