Perhaps you should try some spelling variations:
cognition instruction » cognition interactions, education instruction, cognitive interaction
instruction theorems » instruction theories, instruction theory, instructional theories
theorems division » theorem diffusion, theorems session
bases linear » based linear, basics linear, games linear
basic linear » quasi linear, basic life
basics clear » basic nuclear

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

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