Perhaps you should try some spelling variations:
2.3.5 communication » 2.3 communication, 2.2.3 communication, 2.5 communication
communication case » communications case, communication based, communication phase
developpement en » developpement et, developpement des, developpement de
3 developpement » de developpement, le developpement, et developpement
technology dlt » technology data, technology debts, technology 21st
dlt inflation » der inflation, die inflation, d inflation
inflation und » inflation index, inflation _, inflation tax
prices 2.3.5 » prices 2.3.1, prices 2.3.4, prices 2.3.6
und prices » fund prices, land prices, bond prices
case 3 » 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 dlt inflation und prices 2.3.5 communication case 3 developpement en afrique.*.