Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, hieu cach
chieu sang » hieu lang, nhieu tang
chieu xanh » chieu tinh, hieu manh
hanh tran » hanh trang, thanh tran, hanh tram
dung cong » dung trong
tran xay » tra xay, tran day, trinh xay
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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: ho ((chieu sach) or (((chieu sang) or (chieu xanh)))) - hanh tran xay dung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (((chieu sang) OR (chieu xanh)))) - hanh tran xay dung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (((chieu sang) or (chieu xanh)))) - hanh tran xay dung cong tac toan cao*.