Perhaps you should try some spelling variations:
2.2.3 communication » 12.2.4 communication, 3.2 communication, 2.7 communication
communication case » communications case, communication based, communication phase
technology debts » technology debate, technology data, technology dlt
developpement de » developpement des, developpement durable
debts inflation » der inflation, does inflation, debt deflation
a developpement » au developpement, de developpement, le developpement
inflation food » inflation good, inflation from, inflation und
prices 2.2.3 » prices 2.2.2, prices 7.2.3, prices 11.2.3
de afrique » de l'afrique, en afrique, l afrique
case a » case 1, case 2, case 3

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

• Adding a wildcard symbol may retrieve word variants: technology debts inflation food prices 2.2.3 communication case a developpement de afrique.*.