Perhaps you should try some spelling variations:
introduction recognition » introduction metacognition, introduction redefinition, introduction definition
recognition methods » recognition method
methods discourse » methods course, methods disease, methods discrete
discourse array » discourse anna, discourse aznar, discourse mary
array formulas » area formulas, harrop formulas, array format

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

• Performing a fuzzy search may retrieve terms with similar spellings: introduction recognition methods discourse array formulas~.
• Adding a wildcard symbol may retrieve word variants: introduction recognition methods discourse array formulas*.