Perhaps you should try some spelling variations:
close patients » care patients, les patients, cleft patients
wang liang » wang yang
liang yang » liang ying, wang yang, yang yang
can close » can lose, a close, can cause
yang can » yang fan, yang dean, yang yang
si among » sex among, 19 among, 1 among

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 can close patients ((si among) OR (ngi among)) letters ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang yang can close patients ((si among) OR (ngi among)) letters ;*".