Perhaps you should try some spelling variations:
programming semantics » programming mathematics, programming series, programming secrets
programming session » programming series, programming service, programs session
information prolog » information ecology, information problem, information poor
concepts critical » contexts critical, concepts clinical, concepts practical

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

• If you are trying to use Boolean operators, they must be ALL CAPS: information prolog ((programming session) OR (programming semantics)) concepts critical~.
• Adding a wildcard symbol may retrieve word variants: information prolog ((programming session) or (programming semantics)) concepts critical*.