Perhaps you should try some spelling variations:
information compilations » information communications, information computational, information operations
information computation » information computational, formations computation, information compaction
discrete operations » discrete operators, discrete observations, discrete relations
operations concepts » populations concepts, relations concepts, operational concept
concepts case » concepts cases, concepts a, concepts chapter

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((information computation) or (information compilations)) discrete operations concepts case~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((information computation) OR (information compilations)) discrete operations concepts case.
• Adding a wildcard symbol may retrieve word variants: ((information computation) or (information compilations)) discrete operations concepts case*.