Perhaps you should try some spelling variations:
ionization instrumentation » operation instrumentation, radiation instrumentation, collection instrumentation
instrumentation genetic » instrumentation magnetic, instrumentation general, instrumentation generating
genetic functions » genetics functions, generic functions, genetic functional
image spaces » image space, image stacks, image states
gate » gave, game, gale

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

• Performing a fuzzy search may retrieve terms with similar spellings: ionization instrumentation genetic functions ((image spaces) or (gate (stacks OR stack)))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ionization instrumentation genetic functions ((image spaces) OR (gate (stacks OR stack))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ionization instrumentation genetic functions ((image spaces) or (gate (stacks OR stack)))".
• Adding a wildcard symbol may retrieve word variants: ionization instrumentation genetic functions ((image spaces) or (gate (stacks OR stack)))*.