Perhaps you should try some spelling variations:
chain information » can information, change information, domain information
information rates » information states, information ratio, information rules
3.7 communication » 3.2 communication, 2.7 communication, 3.5 communication
technology chain » technology can, technology china, technology changing
developing en » developing e, developing eq, developing egg
1 developing » 3 developing, 4 developing, 2 developing
rates age » rates aged, rates wage, rates have
age 3.7 » age 3.1, age 3.3, age 8.7
costs 1 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology chain information rates age 3.7 communication costs 1 developing en afrique.*.