Perhaps you should try some spelling variations:
cost patient » cross patient, courts patient, class patient
patient risk » patients risk, patient task, patient cost
among sex » among smes, among eu
yang jun » pang jun, yang jin, yang judy
yang jui » yang judy, yang di, yang xi
yang up » tying up, hang ups, yang hui
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 yanling ((yang up) or (((yang jun) OR (yang jui)))) cost patient risk among sex ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yanling ((yang up) OR (((yang jun) OR (yang jui)))) cost patient risk among sex ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yanling ((yang up) or (((yang jun) OR (yang jui)))) cost patient risk among sex ;*".