Perhaps you should try some spelling variations:
burned patients » burnt patient, surgery patients
patients links » patients clients, patients final, patients risk
lang yanling » wang yanling, wang yangming, zhang yunling
links among » linkages among
yang yang » wang yang, wang yan
among ers » among peers, among users, among east
yang jun » yang jui, pang jun, yang jin

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yanling ((yang jun) or (yang yang)) burned patients links among ers ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yanling ((yang jun) OR (yang yang)) burned patients links among ers ;*.