Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
ho chiet » ho chieu, hoc thiet, hoa thiet
ho thiet » hoc thiet, hoa thiet, so thiet
canh ban » can ban, canh dan, canh van
dan than » dan chan, ban than, van than
ban cua » ban quan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (ho thiet)) tach - canh ban cua nhung cong ((manh toan) OR (dan than)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) OR (ho thiet)) tach - canh ban cua nhung cong ((manh toan) or (dan than)) cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) OR (ho thiet)) tach - canh ban cua nhung cong ((manh toan) or (dan than)) cau*.