Perhaps you should try some spelling variations:
kwei sheng » wei shang
wan liang » wang liang, yan liang, yang liang
kwei shen » wei shen, enwei shen
chang won » chang soon, chang ann, chang min
daud wan » dato wan
chang ha » chang mae
wang yue » wong yue, wang hua, wang yan

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: daud wan liang ((kwei shen) OR (kwei sheng)) chang won ((chang ha) OR (wang yue)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "daud wan liang ((kwei shen) OR (kwei sheng)) chang won ((chang ha) or (wang yue)) ;~".
• Adding a wildcard symbol may retrieve word variants: daud wan liang ((kwei shen) OR (kwei sheng)) chang won ((chang ha) or (wang yue)) ;*.