Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc dieu
trinh han » trinh quan
hang cong » dang cong, hang nong, bang cong
han hang » hang hang, han chang, ban hang
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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) or (hoc hien)) sach - hanh trinh han hang cong ((dan toan) or (dan than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) sach - hanh trinh han hang cong ((dan toan) OR (dan than)) ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc hien)) sach - hanh trinh han hang cong ((dan toan) or (dan than)) ban*.