Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoa chinh » hoan chinh, hoa hinh, hoc chinh
khach san » khach hang, thanh san
dang cong » dung cong
ban toan » bai toan, ban than, van toan
toan ban » van ban
san cua » sang cua, ban cua, dan cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoa chinh sach - khach san cua ((nhung cong) or (dang cong)) ban toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoa chinh sach - khach san cua ((nhung cong) OR (dang cong)) ban toan ban.
• Adding a wildcard symbol may retrieve word variants: hoa chinh sach - khach san cua ((nhung cong) or (dang cong)) ban toan ban*.