Perhaps you should try some spelling variations:
les patients » des patients, older patients, aids patients
patients 1 » patients _
wang yang » wang yan, wang liang, wang yanling
among two » along two
yang jui » yang judy, yang di, yang xi
yang jun » yang jin, yang judy, yang fan
1 among » 19 among, 1.5 among, 1.8 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 yang ((yang jui) or (((yang jun) or (pang jun)))) les patients 1 among two ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang ((yang jui) OR (((yang jun) OR (pang jun)))) les patients 1 among two ;.
• Adding a wildcard symbol may retrieve word variants: wang yang ((yang jui) or (((yang jun) or (pang jun)))) les patients 1 among two ;*.