Perhaps you should try some spelling variations:
done past » done part, money past, some past
past case » east case, past based, test case
case done » case one, have done
wang yang » wang yan, wang liang, wang yanling
yang jie » yang jin, yang xi, yang jun
yang jui » yang judy, yang xi
yang yi » yang xi

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

• Performing a fuzzy search may retrieve terms with similar spellings: done past case done when ((((yang jie) or (wang yang))) or (yang di)) ((yang jui) or (yang yi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: done past case done when ((((yang jie) OR (wang yang))) OR (yang di)) ((yang jui) OR (yang yi)) ;*.