Perhaps you should try some spelling variations:
2.3.1.1 communication » 2.2.5.4 communication, 3.4.1 communication, 6.2.4.1 communication
communication united » telecommunication united
de developpement » sme development
developpement de » developpement des, developpement durable
technology 12 » technology 1.2, technology 1, technology 2
12 inflation » 10 inflation, 2 inflation, 3.2 inflation
date 2.3.1.1 » daten 5.3.1.1, data 4.3.1.1, data 6.3.1.1
de afrique » de l'afrique, en afrique, l afrique
rate date » rate data, trade date, rate water
united de » united we, unites de, united _

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

• Adding a wildcard symbol may retrieve word variants: technology 12 inflation rate date 2.3.1.1 communication united de developpement de afrique.*.