Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh cua » doanh cua, manh cua
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
dang van » hoang van, hang va
dan van » doan 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 tinh - hanh tranh cua dung cong ((dan van) OR (dang van)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu tinh - hanh tranh cua dung cong ((dan van) OR (dang van)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh tranh cua dung cong ((dan van) OR (dang van)) ban*.