Talvez debería tentar con algunhas variantes ortográficas:
ionization instruction » cognition instruction, operation instruction, ionization instrumentation
instruction theory » introduction theory, institutional theory
theory division » theory decision, theory revision, theorems division
bases linear » basics linear, games linear, mass linear
basic linear » quasi linear, basic life
based linear » based nonlinear, based library, based lead

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

• Performing a fuzzy search may retrieve terms with similar spellings: ionization instruction theory division ((((bases linear) or (basic linear))) or (based linear))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ionization instruction theory division ((((bases linear) OR (basic linear))) OR (based linear)).
• Adding a wildcard symbol may retrieve word variants: ionization instruction theory division ((((bases linear) or (basic linear))) or (based linear))*.