Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
yang mind » yang cindy, yang jin, tang min
song sein » song shin, song jin, song min
doing up » doing un, going up, adding up
tong hui » wang hui
ca per » care per
up a » up _
a ca » a car, a cat, a cad

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

• Performing a fuzzy search may retrieve terms with similar spellings: doing up a ca per ((yang mind) OR (sang minh)) ((tong hui) or (song sein)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doing up a ca per ((yang mind) OR (sang minh)) ((tong hui) OR (song sein)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doing up a ca per ((yang mind) OR (sang minh)) ((tong hui) or (song sein)) ;".
• Adding a wildcard symbol may retrieve word variants: doing up a ca per ((yang mind) OR (sang minh)) ((tong hui) or (song sein)) ;*.