Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu nganh, dieu hanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong nong » cong dong, cong cong, cong trong
nhan ban » nhuan ban, nhan dan, nhan van
nong van » song van, nong dan, nong san
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: doc ((hieu xanh) or (hieu manh)) - ((nhan ban) or (nhat ban)) cua cong nong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (hieu manh)) - ((nhan ban) OR (nhat ban)) cua cong nong van toan ban.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (hieu manh)) - ((nhan ban) or (nhat ban)) cua cong nong van toan ban*.