Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tac nhung » tay nhung, tham nhung, thai nhung
cong tac » cong ty
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (((chieu sach) OR (chieu sang)))) - thanh cong tac nhung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (((chieu sach) OR (chieu sang)))) - thanh cong tac nhung cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (((chieu sach) OR (chieu sang)))) - thanh cong tac nhung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (((chieu sach) OR (chieu sang)))) - thanh cong tac nhung cong dan toan cao*.