Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh dung » thanh dung, anh dung, manh dung
hanh dong » anh dong, ha dong
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
san chay » san pham, van chat, dan chan
chay cao » cay cao, chat cao, nha cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - ((hanh dung) or (hanh dong)) cua dung cong san chay cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((hanh dung) OR (hanh dong)) cua dung cong san chay cao.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((hanh dung) or (hanh dong)) cua dung cong san chay cao*.