Perhaps you should try some spelling variations:
22greek literature » greek literature, grey literature, street literature
2f criticism » 27 criticism, 28 criticism, 22 criticism
29 textual » 27 textual, 9 textual, 2.1 textual
2 textual » _ textual, a textual, 4 textual

Try widening your search to All Fields.

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• The words AND, OR and NOT may confuse the search; try adding quotes: "%22greek literature %2f criticism%((29 textual) OR (2 textual))%22".
• Adding a wildcard symbol may retrieve word variants: %22greek literature %2f criticism%((29 textual) OR (2 textual))%22*.