Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung thanh » truong thanh
thanh dung » thanh duong, thanh tung, thanh hung
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
ho chieu » theo chieu, mot chieu, doi chieu
cong van » cong vang, cong san, song van
van van » tan van, san van, van vat

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 thanh dung cong van van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - thanh trung thanh dung cong van van ban.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sach - thanh trung thanh dung cong van van ban*.