Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh dong » anh dong, ha dong
phan cong » thanh cong
dong cua » dung cua, cong cua, huong cua
cua phan » cua nhan, cua phap, cua han
tap doan » tap quan

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 dong cua phan cong ((tap doan) or (bai tap)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh dong cua phan cong ((tap doan) OR (bai tap)) cau*.