Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
huong manh » duong manh, hung manh, luong manh
hoc chieu » hoc thieu, ho chieu, hoc hien
san chang » ban hang, dan chan, van khang
manh toan » thanh toan, anh tuan, tinh toan
han hang » hang hang, han chang, ban hang
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 (san chang)) huong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh trinh ((han hang) OR (san chang)) huong manh toan ban*.