Perhaps you should try some spelling variations:
bond patients » burned patients, among patients, bond ratings
patients risk » patient risk, patients links, patients si
wang liang » wang yang
among east » among breast, among ers, among health
yang yang » wang yang, wang yan
yang jun » pang jun, yang jin, yang judy
yang jui » yang judy, yang di, 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: wang liang ((((yang jun) OR (yang jui))) or (yang yang)) bond patients risk among east ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang ((((yang jun) OR (yang jui))) OR (yang yang)) bond patients risk among east ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang ((((yang jun) OR (yang jui))) or (yang yang)) bond patients risk among east ;*".