Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhan dang » nhan dan, phan dang, tran dang
cua nhung » va nhung
dang cua » dung cua, dong cua, mang cua
cong san » cong tac
phan lap » phan dau

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 - nhan dang cua nhung ((huong dan) or (cong san)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - nhan dang cua nhung ((huong dan) OR (cong san)) phan lap.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - nhan dang cua nhung ((huong dan) or (cong san)) phan lap*.