Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh cua » doanh cua, manh cua
cua nhung » va nhung
doan van » hoang van, luan van, tran van
dan van » dang van, dao van, tan van

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