Perhaps you should try some spelling variations:
longer stays » longer days
stays can » state can
china wen » chia wen, china won, ching wen
yang jie » yang jin, yang jui, yang yi
yang jun » yang jui, pang jun, yang jin
tong hui » wang hui
yang xi » yang yi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: longer stays can china wen ((((((yang jie) OR (yang xi))) or (yang di))) or (yang jun)) tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: longer stays can china wen ((((((yang jie) OR (yang xi))) OR (yang di))) OR (yang jun)) tong hui ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "longer stays can china wen ((((((yang jie) OR (yang xi))) or (yang di))) or (yang jun)) tong hui ;*".