Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
hieu lang » chieu sang, hieu quang, nhieu tang
manh tung » manh hung, thanh tung
cong vang » cong lang, cong quang, cong ngang
tung cua » trung cua, tuong cua, dung cua
cua dang » cua cong, cua ban
cong van » cong san, song van, cong tan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu manh) or (hieu lang)) - manh tung cua dang ((cong van) OR (cong vang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (hieu lang)) - manh tung cua dang ((cong van) OR (cong vang)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu manh) or (hieu lang)) - manh tung cua dang ((cong van) OR (cong vang)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (hieu lang)) - manh tung cua dang ((cong van) OR (cong vang)) toan ban*.