Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
city development » capacity development, policy development, community development
inflation rates » inflation rate
development led » development lid, development leads, development land
technology txt » technology tax, technology tpm, technology trust
txt inflation » taxes inflation, anti inflation, rate inflation
led afrique » en afrique, l afrique
cost city » host city, best city, east city
pt α » pt 1, pt 3, pt 4

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technology txt inflation rates ((pt α) OR (pt 2)) communication cost city development led afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology txt inflation rates ((pt α) OR (pt 2)) communication cost city development led afrique.*.