Perhaps you should try some spelling variations:
vaccination based » vaccination rates, activation based, vaccination rate
communications k » communications _, communications a, communications 5
loans developing » rates developing
developing model » developing modern, developing module, development model
3.2 vaccination » 19 vaccination, _ vaccination, de vaccination
typologies 3.2 » typologies 4.2, typologies 3.2.1, typologies 2.3
based other » bad other, based order, based theory
other data » weather data
k loans » _ loans, up loans

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

• Adding a wildcard symbol may retrieve word variants: typologies 3.2 vaccination based other data communications k loans developing model afrique.*.