Perhaps you should try some spelling variations:
introduction comprehensive » introduction comparative
introduction competition » introduction computation, introduction cooperation, production competition
problems succession » problems session, problem session, rulers succession
succession concepts » success concepts, regression concepts, success 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: ((introduction comprehensive) or (introduction competition)) problems succession concepts case~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((introduction comprehensive) OR (introduction competition)) problems succession concepts case.
• Adding a wildcard symbol may retrieve word variants: ((introduction comprehensive) or (introduction competition)) problems succession concepts case*.