Perhaps you should try some spelling variations:
7.7 communication » 2.7 communication, 2.3 communication, 3.2 communication
developpement en » developpement et, developpement des, developpement de
4 developpement » de developpement, le developpement, et developpement
technology dlt » technology data, technology debts, technology 21st
dlt inflation » der inflation, die inflation, d inflation
rate flap » rate float, rate cap, te flap
flap 7.7 » flap 7.8, flaps 2.7, flaps 7.6
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 dlt inflation rate flap 7.7 communication costs 4 developpement en afrique.*.