Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
phan chung » phan cung, phan hung, phan thuong
hoc chieu » hoc thieu, ho chieu, hoc hien
han hang » hang hang, han chang, ban hang
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 sach - hanh trinh ((han hang) or (phan chung)) huong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh trinh ((han hang) OR (phan chung)) huong dan toan ban*.