Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
dung cong » dung trong
ho chiet » ho chieu, ho thiet, hoc thiet
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - hanh tranh cua ((dang cong) OR (dung cong)) ((dan than) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh tranh cua ((dang cong) OR (dung cong)) ((dan than) OR (dan chan)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - hanh tranh cua ((dang cong) OR (dung cong)) ((dan than) or (dan chan)) cau*".