Perhaps you should try some spelling variations:
development empirical » development political, development critical, development musical
communication paper » communication power, communication pattern, communication partner
data communication » data communications
information 2.2 » information 1.2, information 2.7, information 2.2.2
a information » 2 information, 1 information
paper energy » water energy, power energy, peer energy
sociology a » sociology _
empirical a » empirical _, empirical d, empirical data
chile data » china data, cycle data, file data
2.2 chile » 2.1 chile, 2.2 child, 3.2 chile

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

• Adding a wildcard symbol may retrieve word variants: sociology a information 2.2 chile data communication paper energy development empirical a.*.