Perhaps you should try some spelling variations:
theo chinh » thien chinh, te chinh, che chinh
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
thanh toan » thanh hoa, thanh san, tinh toan
tranh cua » doanh cua, manh cua
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chinh sach - hanh tranh cua ((nhung cong) OR (thong cong)) ((dan than) or (thanh toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chinh sach - hanh tranh cua ((nhung cong) OR (thong cong)) ((dan than) OR (thanh toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chinh sach - hanh tranh cua ((nhung cong) OR (thong cong)) ((dan than) or (thanh toan)) ban".
• Adding a wildcard symbol may retrieve word variants: theo chinh sach - hanh tranh cua ((nhung cong) OR (thong cong)) ((dan than) or (thanh toan)) ban*.