Perhaps you should try some spelling variations:
fermentation process » fermentation processes, fermentation products, fermentation profiles
teaching dimension » learning dimension, teaching design, teaching decision
process teaching » processes teaching, process tracing, process testing
array forming » array arcing, array fermi, array formats
array string » array strong, arrays strings, array sharing

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• Performing a fuzzy search may retrieve terms with similar spellings: fermentation process teaching dimension ((array format) or (((array forming) or (array string))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: fermentation process teaching dimension ((array format) OR (((array forming) OR (array string)))).
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