Perhaps you should try some spelling variations:
chiet tach » chieu sach
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
hanh hinh » hanh chinh, hanh tinh, hanh trinh
hanh dinh » thanh dinh, hinh dinh, hanh tinh
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
gian man » gian dan, gian lan, gian van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chiet tach) or (chieu sang)) - ((hanh hinh) OR (hanh dinh)) cua nhung cong dan gian man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chiet tach) OR (chieu sang)) - ((hanh hinh) OR (hanh dinh)) cua nhung cong dan gian man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chiet tach) or (chieu sang)) - ((hanh hinh) OR (hanh dinh)) cua nhung cong dan gian man".
• Adding a wildcard symbol may retrieve word variants: hoc ((chiet tach) or (chieu sang)) - ((hanh hinh) OR (hanh dinh)) cua nhung cong dan gian man*.