Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
than cap » khan cap, thanh lap, thanh cac
cong tu » cong ty, cong cu, dong tu
tu than » tu thanh, tu nhan, nu than

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (hieu manh)) - hanh tranh ((cua dung) OR (qua dung)) cong tu than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hieu manh)) - hanh tranh ((cua dung) OR (qua dung)) cong tu than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (hieu manh)) - hanh tranh ((cua dung) OR (qua dung)) cong tu than cap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (hieu manh)) - hanh tranh ((cua dung) OR (qua dung)) cong tu than cap*.