Perhaps you should try some spelling variations:
6.3 communication » 26.3 communication, 2.3 communication, 4.3 communication
technology grade » technology trade, technology guides, technology gender
down development » town development, grown development, loan development
grade inflation » price inflation, trade information
inflation rates » inflation rate
development li » development lid, development lie, development lin
rates bayes » rates rates, later bayes
costs down » costs how
li afrique » l afrique, en afrique
bayes 6.3 » bayes 6.2.3, bayes 2.2, bayes 3

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

• Adding a wildcard symbol may retrieve word variants: technology grade inflation rates bayes 6.3 communication costs down development li afrique.*.