Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hanh hang » thanh hang, hang hang, hanh mang
dung cong » dung trong
hanh han » hanh nhan, hanh phan, hanh san
van tuan » van quan, anh tuan
va dung » van dung, va duong, vat dung

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: hoc thieu xanh - ((hanh hang) OR (hanh han)) va dung cong ((van tuan) OR (van ban)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((hanh hang) or (hanh han)) va dung cong ((van tuan) OR (van ban)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh hang) or (hanh han)) va dung cong ((van tuan) OR (van ban)) cau*.