Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
chau tinh » cuu tinh, ha tinh, cua tinh
hanh dong » anh dong
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap
ha dong » hoat dong, van dong

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (chau tinh)) - ((hanh dong) OR (ha dong)) cua nhung cong dan than tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu manh) or (chau tinh)) - ((hanh dong) OR (ha dong)) cua nhung cong dan than tap~".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (chau tinh)) - ((hanh dong) OR (ha dong)) cua nhung cong dan than tap*.