Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh cua » doanh cua, manh cua
nong cong » cong cong, tong cong, dong cong
nang cong » nang song, dang cong, bang cong
van tuan » van quan, anh tuan

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 - hanh tranh cua ((nong cong) or (nang cong)) ((van tuan) OR (van ban)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh tranh cua ((nong cong) OR (nang cong)) ((van tuan) OR (van ban)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - hanh tranh cua ((nong cong) or (nang cong)) ((van tuan) OR (van ban)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh tranh cua ((nong cong) or (nang cong)) ((van tuan) OR (van ban)) ban*.