Perhaps you should try some spelling variations:
2.4.3 communication » 2.2.3 communication, 2.8.3 communication, 6.2.4.3 communication
developpement du » developpement de, developpement des, developpement et
technology bi » technology 4ir, technology b2b, technology bft
bi inflation » bei inflation, i inflation, die inflation
file 2.4.3 » file 3.2.3, rule 2.4.3
du afrique » en afrique, l afrique, de l'afrique
rate file » case file, rate fee, rate firm
3 zu » 3 zur, 3 zum, 1 zu
2 zu » 2 zur, 2 zum

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 bi inflation rate file 2.4.3 communication ((3 zu) OR (2 zu)) developpement du afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology bi inflation rate file 2.4.3 communication ((3 zu) OR (2 zu)) developpement du afrique.*.