Perhaps you should try some spelling variations:
when coal » when goal, women coal, when can
zhi duan » shi dan, zhi du
duan cao » dan cao
cao when » do when, so when, bay when
yang jie » yang jin, yang yi, yang jun
yang jui » yang judy, yang yi
yang xi » yang yi
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang zhi duan cao when coal oil ((((yang jie) OR (yang xi))) or (((yang di) or (yang jui)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang zhi duan cao when coal oil ((((yang jie) OR (yang xi))) OR (((yang di) OR (yang jui)))) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang zhi duan cao when coal oil ((((yang jie) OR (yang xi))) or (((yang di) or (yang jui)))) ;*".