Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trang » thanh trung, hanh trinh, minh trang
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
ran cau » van cau, ban cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - ((hanh trang) or (canh tranh)) cua nhung ((cong tan) or (cong san)) ran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh trang) OR (canh tranh)) cua nhung ((cong tan) OR (cong san)) ran cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh trang) or (canh tranh)) cua nhung ((cong tan) or (cong san)) ran cau*.