Perhaps you should try some spelling variations:
manh khung » manh hung, manh tung, anh hung
hieu manh » chieu xanh, hieu nganh, dieu hanh
hieu lang » chieu sang, hieu quang, nhieu tang
khung cua » chung cua, khung luan, chung cu
dang cong » dung cong
cua dang » cua cong, cua ban
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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 khung cua dang cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (hieu lang)) - manh khung cua dang cong van toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (hieu lang)) - manh khung cua dang cong van toan ban*.