Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
nhung cong » dung cong, thong cong, hang cong
hieu xanh » chieu xanh, hieu manh, hieu nganh
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
doc hieu » toc thieu, hoc thieu, hoc hien
dan than » dan chan, ban than, van than

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 ((dan than) or (manh toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((hanh trang) OR (hanh trinh)) cua nhung cong ((dan than) OR (manh toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - ((hanh trang) OR (hanh trinh)) cua nhung cong ((dan than) or (manh toan)) ban".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - ((hanh trang) OR (hanh trinh)) cua nhung cong ((dan than) or (manh toan)) ban*.