Perhaps you should try some spelling variations:
7.2.3 communication » 2.2.3 communication, 3.2.3 communication, 7.2.1 communication
communication case » communications case, communication based, communication phase
developpement de » developpement des, developpement durable
l developpement » le developpement, de developpement, et developpement
inflation land » inflation und, inflation can, inflation linked
technology 2 » technology _, technology 1, technology 3
prices 7.2.3 » prices 7.2.2, prices 11.2.3, price 5.2.3
2 inflation » 12 inflation, _ inflation, 6 inflation
de afrique » de l'afrique, en afrique, l afrique
case l » case la, case 1, case 2

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

• Adding a wildcard symbol may retrieve word variants: technology 2 inflation land prices 7.2.3 communication case l developpement de afrique.*.