Perhaps you should try some spelling variations:
22greek literature » greek literature, street literature, free literature
grey literature » greek literature
2f criticism » 27 criticism, 28 criticism, 22 criticism
2.1 textual » 2.2 textual, 2.3 textual, 8.1 textual
2.6 textual » 2.2 textual, 2.3 textual, 2 textual

Try widening your search to All Fields.

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

• If you are trying to use Boolean operators, they must be ALL CAPS: %((22greek literature) OR (grey literature)) %2f criticism%((2.1 textual) OR (2.6 textual))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22greek literature) or (grey literature)) %2f criticism%((2.1 textual) OR (2.6 textual))%22".
• Adding a wildcard symbol may retrieve word variants: %((22greek literature) or (grey literature)) %2f criticism%((2.1 textual) OR (2.6 textual))%22*.