Perhaps you should try some spelling variations:
wang liang » wang yang
liang dan » liang tan, king dan, liang sun
er tender » der gender, der lender, _ tender
congo can » congo call, congo a, congo war
duong van » duong anh
cong van » cong sun
die spur » der spur
dan er » dan e

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 liang dan er tender ((congo can) OR (((cong van) OR (duong van)))) die spur ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang dan er tender ((congo can) or (((cong van) OR (duong van)))) die spur ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang dan er tender ((congo can) or (((cong van) OR (duong van)))) die spur ;*.