Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
cong thanh » dong thanh, cong trinh, cong tan
lang cong » dang cong, bang cong, hang cong
thanh tho » thanh thao, thanh pho, thanh ho
va lang » va nang, hoa lang

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) or (thi thanh)) - thanh dung va lang cong thanh tho ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (thi thanh)) - thanh dung va lang cong thanh tho ca.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (thi thanh)) - thanh dung va lang cong thanh tho ca*.