Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
lisa sang » lisa ann, lisa ring
sang minh » kang minah, anh minh, song min
tan yang » dan yang, tan ying, tan yong
li lisa » li lina, lind lisa, li linda
cong du » long du, cong shu, cong sun
h yang » _ yang, hui yang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((h yang) OR (((tan yang) OR (wang yang)))) li lisa sang minh cong du ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((h yang) or (((tan yang) or (wang yang)))) li lisa sang minh cong du ;*.