Perhaps you should try some spelling variations:
thanh cuong » thanh chuong, thanh cong, thanh huong
chieu sach » chiet tach, chieu sang, chieu xanh
cuong qua » cuong quan, duong qua, cuong cua
trong tan » trong quan, trong cac, trong ca
qua dung » quang dung, su dung, qua song
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) OR (chinh sach)) - thanh cuong qua dung trong tan ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chinh sach)) - thanh cuong qua dung trong tan ((toan cao) OR (van ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) OR (chinh sach)) - thanh cuong qua dung trong tan ((toan cao) or (van ban))".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) OR (chinh sach)) - thanh cuong qua dung trong tan ((toan cao) or (van ban))*.