Perhaps you should try some spelling variations:
duong van » cong van, duong anh
sing kong » king kong, hong kong
kong star » kong sar
kun wage » run wage, non wage
can wage » can we, non wage
lee sing » lee sang, lee ching, lee kiong
van yan » nan yan, qian yan, dan yang

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

• Performing a fuzzy search may retrieve terms with similar spellings: duong van yan ((kun wage) or (can wage)) lee sing kong star ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: duong van yan ((kun wage) OR (can wage)) lee sing kong star ;.
• Adding a wildcard symbol may retrieve word variants: duong van yan ((kun wage) or (can wage)) lee sing kong star ;*.