Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trung » thanh trung, manh trung, danh trung
hanh trang » thanh trung, hanh trinh, minh trang
hoc thieu » toc thieu, hoc hien
cong cong » cong dong, trong cong, dung cong
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 trang) OR (canh tranh)))) cua cong cong tac tan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh trung) OR (((hanh trang) OR (canh tranh)))) cua cong cong tac tan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((hanh trung) or (((hanh trang) OR (canh tranh)))) cua cong cong tac tan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh trung) or (((hanh trang) OR (canh tranh)))) cua cong cong tac tan tap*.