Perhaps you should try some spelling variations:
thanh vung » thanh vuong, thanh hung, thanh dung
thanh tung » thanh cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
thanh tap » thanh lap, thanh tai, thanh tam
thanh tay » thanh tai, thanh toan, thanh thuy
doc hieu » toc thieu, hoc thieu, hoc hien
dong san » cong san, dong bang, dong von

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu manh - thanh trung ((thanh vung) OR (thanh tung)) dong san ((thanh tap) or (thanh tay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu manh - thanh trung ((thanh vung) OR (thanh tung)) dong san ((thanh tap) OR (thanh tay)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu manh - thanh trung ((thanh vung) OR (thanh tung)) dong san ((thanh tap) or (thanh tay))".
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - thanh trung ((thanh vung) OR (thanh tung)) dong san ((thanh tap) or (thanh tay))*.