Perhaps you should try some spelling variations:
operation instructions » operation construction, application instructions, cooperation institutions
instructions theory » instruction theory, instructional theory, instructors theory
theory revision » theory decision, theory revisited, theory session
basics linear » based linear, basics clear
basic linear » quasi linear, basic life
mass linear » bases linear, class linear, less linear

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

• Performing a fuzzy search may retrieve terms with similar spellings: operation instructions theory revision ((((basic linear) OR (basics linear))) OR (mass linear))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "operation instructions theory revision ((((basic linear) OR (basics linear))) OR (mass linear))".
• Adding a wildcard symbol may retrieve word variants: operation instructions theory revision ((((basic linear) OR (basics linear))) OR (mass linear))*.