Perhaps you should try some spelling variations:
thi chieu » thi chien, thi hieu, theo chieu
hanh dung » thanh dung, anh dung, hanh dong
cong cong » trong cong, dung cong, dang cong
theo chu » theo chieu, cho chu, chao chu
dung cua » dung luan, dung cho
san toan » van toan, dan toan, manh toan
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: ((thi chieu) or (theo chu)) sach - hanh dung cua ((cong cong) or (cong dong)) san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi chieu) OR (theo chu)) sach - hanh dung cua ((cong cong) OR (cong dong)) san toan cao.
• Adding a wildcard symbol may retrieve word variants: ((thi chieu) or (theo chu)) sach - hanh dung cua ((cong cong) or (cong dong)) san toan cao*.