Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh tang » hanh trang, anh tang, hanh mang
song xanh » song hanh, hoang xanh, duong xanh
xanh tuan » anh tuan, manh tuan, thanh tuan
doc hieu » toc thieu, hoc thieu, hoc hien
dan dung » tin dung, ap dung
van dung » van dong, xay dung, tin dung
tuan tap » toan tap, tuan tai, tuyen tap

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 xanh - hanh tang ((dan dung) OR (van dung)) song xanh tuan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh tang ((dan dung) OR (van dung)) song xanh tuan tap".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh tang ((dan dung) OR (van dung)) song xanh tuan tap*.