Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
hoc thieu » toc thieu, hoc hien
tuan hung » tran hung, luan hung, tuan dung
hung cong » nhung cong, hung cuong, phung cong
doc hieu » toc thieu, hoc hien
san than » sang than, san thanh, van than
ban than » ban thanh, van thanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc thieu)) sach - thanh trung tuan hung cong ((san than) OR (ban than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) sach - thanh trung tuan hung cong ((san than) OR (ban than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (hoc thieu)) sach - thanh trung tuan hung cong ((san than) OR (ban than)) cau".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) sach - thanh trung tuan hung cong ((san than) OR (ban than)) cau*.