Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (doi chi)) xanh - hanh tranh cua nhung ((huong dan) or (cong tan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) xanh - hanh tranh cua nhung ((huong dan) OR (cong tan)) toan tap.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doi chi)) xanh - hanh tranh cua nhung ((huong dan) or (cong tan)) toan tap*.