Perhaps you should try some spelling variations:
instruction comprehensive » introduction comprehensive, introduction comprehension, constructive comprehension
comprehensive programming » comprehensive program, comprehensive programs, comprehension programmed
revision concepts » vision concepts, visions concepts, supervision concepts
error concepts » order concepts

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

• Performing a fuzzy search may retrieve terms with similar spellings: instruction comprehensive programming ((error concepts) OR (revision concepts)) cited~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "instruction comprehensive programming ((error concepts) OR (revision concepts)) cited".
• Adding a wildcard symbol may retrieve word variants: instruction comprehensive programming ((error concepts) OR (revision concepts)) cited*.