Perhaps you should try some spelling variations:
truong xuan » tung xuan
yuan wang » yuan kang, yuan chang, qian wang
yan wang » yang yang, qian wang, yan liang
xuan one » than one, can one, man one
yan a » can a, yan _, wan a
man a » man ja, oman a, man _
jan a » jane a, can a, jan m

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: ((yan wang) OR (yuan wang)) ((((yan a) OR (man a))) OR (jan a)) gene truong xuan one sur ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan wang) or (yuan wang)) ((((yan a) OR (man a))) or (jan a)) gene truong xuan one sur ;~".
• Adding a wildcard symbol may retrieve word variants: ((yan wang) or (yuan wang)) ((((yan a) OR (man a))) or (jan a)) gene truong xuan one sur ;*.