Perhaps you should try some spelling variations:
modern instrumentation » control instrumentation, based instrumentation
instrumentation theory » instrumentation methods, instrumentation https, instruction theory
theory division » theory decision, theory revision, theorems division
basis linear » basics linear, basic linear, bases linear
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: modern instrumentation theory division ((basis linear) or (mass linear))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: modern instrumentation theory division ((basis linear) OR (mass linear)).
• Adding a wildcard symbol may retrieve word variants: modern instrumentation theory division ((basis linear) or (mass linear))*.