Perhaps you should try some spelling variations:
operation instrumentation » applications instrumentation, therapy instrumentation, modern instrumentation
instrumentation central » instrumentation control, instrumentation general, instrumentation spectral
central functions » control functions, mental functions, spectral functions
image tricks » image stacks, magic tricks
gate » gave, game, gae

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 central functions ((image tricks) or ((gate or gale) stacks))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: operation instrumentation central functions ((image tricks) OR ((gate OR gale) stacks)).
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