Perhaps you should try some spelling variations:
4.10 communication » 4.1 communication, 4.1.7 communication, 1.1 communication
risk polarization » risk dollarization, fiscal polarization, class polarization
polarization data » polarisation data, localization data, privatization data
del development » model development, delta development, well development
development lid » development led, development li, development lie
lid afrique » l afrique
data race » data rate, data rates
race 4.10 » race 4.2
costs del » costa del, costo del

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

• Adding a wildcard symbol may retrieve word variants: technology risk polarization data race 4.10 communication costs del development lid afrique.*.