Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
cam nhung » cam hung, nam nhung, tham nhung
ho chieu » theo chieu, hoc thieu, doi chieu
tung cam » dung cam, trung cap, tung pham
cong san » cong tac
khan cap » khan ap, than cap, khoan cam

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 - thanh tung cam nhung ((huong dan) or (cong san)) khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh tung cam nhung ((huong dan) OR (cong san)) khan cap.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tung cam nhung ((huong dan) or (cong san)) khan cap*.