Perhaps you should try some spelling variations:
2.3.1.2 communication » 2.3.1.1 communication, 2.2.5.4 communication, 3.2.3.2 communication
4 developpement » de developpement, le developpement, et developpement
inflation tax » inflation rate, inflation _, inflation target
krieg 2.3.1.2 » krieg 2.3.1.1, kriege 2.3.1.3, fig 2.3.1.2
technology 2 » technology _, technology 1, technology 3
2 inflation » 12 inflation, _ inflation, 6 inflation
des afrique » en afrique, de l'afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 2 inflation tax krieg 2.3.1.2 communication costs 4 developpement des afrique.*.