Perhaps you should try some spelling variations:
hard things » bad things, smart things
during drag » turning drag, using drag, during graft
hard thing » hardly think
ying yang » yang yang, yin yang, ying chang
drag bei » drag abed, tag bei
yu fang » yu gang, yu wang, yu yang
wang he » wang hua, wang zhi, wang wei

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ying yang) or (yu fang)) wang he ((hard thing) OR (hard things)) during drag bei ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ying yang) OR (yu fang)) wang he ((hard thing) OR (hard things)) during drag bei ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ying yang) or (yu fang)) wang he ((hard thing) OR (hard things)) during drag bei ;*".