Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, anh trinh
hoc thieu » toc thieu, hoc hien
canh tinh » hanh tinh, manh tinh, canh tranh
cong toan » cong hoan, cong tuan, cong doan
cong tan » cong tac, cong san, cong thanh
hang tai » hang va, dung tai
va hang » van hang, va nang, va lang

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 - ((canh trinh) OR (canh tinh)) va hang ((cong toan) OR (cong tan)) hang tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((canh trinh) or (canh tinh)) va hang ((cong toan) OR (cong tan)) hang tai~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((canh trinh) or (canh tinh)) va hang ((cong toan) OR (cong tan)) hang tai*.