Perhaps you should try some spelling variations:
theo chinh » thien chinh, te chinh, che chinh
thanh tung » thanh cong
nhung cong » dung cong, thong cong, nhung don
hang cong » dang cong, hang nong, bang cong
tung cao » nung cao, truong cao, trung cap
dan than » dan chan, ban than, dan toan
van than » van thanh, van thang, van tuan

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 - thanh tung cao ((nhung cong) OR (hang cong)) ((dan than) or (van than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chinh sach - thanh tung cao ((nhung cong) OR (hang cong)) ((dan than) OR (van than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chinh sach - thanh tung cao ((nhung cong) OR (hang cong)) ((dan than) or (van than)) cau".
• Adding a wildcard symbol may retrieve word variants: theo chinh sach - thanh tung cao ((nhung cong) OR (hang cong)) ((dan than) or (van than)) cau*.