Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
hieu xanh » chieu xanh, hieu manh, hieu nganh
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
cong tac » cong ty
dang van » hoang van, hang va
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - ((hanh trang) or (hanh trinh)) cua nhung ((cong tac) or (dang van)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((hanh trang) OR (hanh trinh)) cua nhung ((cong tac) OR (dang van)) toan tap.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - ((hanh trang) or (hanh trinh)) cua nhung ((cong tac) or (dang van)) toan tap*.