Perhaps you should try some spelling variations:
cost patients » cost patient, cleft patients, care patients
patients risk » patient risk, patients links, patients si
wang liang » wang yang
liang yang » liang ying, wang yang, yang yang
risk tong » risk among, risk along
tong shui » tong hui, cong shu, gong hui
yang up » yang jui, tying up, yang jun
up cost » up costs

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 up cost patients risk tong shui ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang yang up cost patients risk tong shui ;*.