Perhaps you should try some spelling variations:
operation instrumentation » applications instrumentation, therapy instrumentation, modern instrumentation
https revision » hips revision, tips revision, its revision
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 instrumentation https revision ((((basics linear) or (basic linear))) or (mass linear))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: operation instrumentation https revision ((((basics linear) OR (basic linear))) OR (mass linear)).
• Adding a wildcard symbol may retrieve word variants: operation instrumentation https revision ((((basics linear) or (basic linear))) or (mass linear))*.