Perhaps you should try some spelling variations:
chiet tach » chieu sach
xanh hanh » danh thanh, ban hanh, van hanh
hang cong » dang cong, hang nong, bang cong
ho chiet » ho chieu, ho thiet, hoc thiet
dan toan » van toan, dan than, manh toan
van tuan » van quan, van ban, anh tuan
hanh va » hang va, hanh vi
va hang » van hang, va nang, va lang

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 - xanh hanh va hang cong ((dan toan) or (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - xanh hanh va hang cong ((dan toan) OR (van tuan)) cau*.