Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technologies along » technologies allow, technologies any, technologies a
along introduction » long introduction, kong introduction, lang introduction
introduction pt » introduction part
development led » development lid, development leads, development land
led afrique » en afrique, l afrique
pt data » pet data, ct data, plot data

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

• Adding a wildcard symbol may retrieve word variants: technologies along introduction pt data data communications costs _ development led afrique.*.