Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trung » thanh trung, hanh trang, manh trung
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
cong tac » cong ty
tac tan » tac can, tac van, tat tan
tan tap » toan tap, han tap, tan tat

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 trung) or (hanh trinh)) cua bang cong tac tan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh trung) OR (hanh trinh)) cua bang cong tac tan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh trung) or (hanh trinh)) cua bang cong tac tan tap*.