Perhaps you should try some spelling variations:
comprehension programmed » comprehensive program, comprehensive programs, comprehension problems
comprehensive programme » comprehensive program, comprehensive programs, comprehensive programming
revision concepts » vision concepts, visions concepts, supervision concepts
chapter » chapters

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

• Performing a fuzzy search may retrieve terms with similar spellings: information ((comprehensive programme) or (comprehension programmed)) revision concepts chapter~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information ((comprehensive programme) OR (comprehension programmed)) revision concepts chapter.
• Adding a wildcard symbol may retrieve word variants: information ((comprehensive programme) or (comprehension programmed)) revision concepts chapter*.