Perhaps you should try some spelling variations:
duong van » cong van, duong anh
lee kiong » lee kyung, lee jeong, lee tong
kun wage » run wage, non wage
can wage » can we, non wage
lee sing » lee sang, lee seung, lee min
van yan » nan yan, qian yan, dan yang
sar » sara, star, saur

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) OR (lee kiong))) or (lee ching)) kong sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: duong van yan ((kun wage) OR (can wage)) ((((lee sing) OR (lee kiong))) OR (lee ching)) kong sar ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "duong van yan ((kun wage) or (can wage)) ((((lee sing) OR (lee kiong))) or (lee ching)) kong sar ;".
• Adding a wildcard symbol may retrieve word variants: duong van yan ((kun wage) or (can wage)) ((((lee sing) OR (lee kiong))) or (lee ching)) kong sar ;*.