Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hien xanh » hien hanh, chieu xanh, hien khanh
anh quan » anh tuan, ban quan, anh nhan
song van » hoang van, trong van, duong van
luong va » dung va
toan cao » toan ban, toan tap
quan va » quan vi, quan ha, luan va
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (hien nhanh)) - anh quan va dung ((song van) or (luong va)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - anh quan va dung ((song van) OR (luong va)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien nhanh)) - anh quan va dung ((song van) or (luong va)) toan cao*.