Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
tran thanh » ban thanh, van thanh, quan thanh
hoc thieu » toc thieu, hoc hien
trung hay » trung ha, trung hai, trung gay
hay nhung » tay nhung, tham nhung, thai nhung
tan thanh » tang thanh, toan thanh, ban thanh
ho chieu » theo chieu, doi chieu, mot chieu

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

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