Perhaps you should try some spelling variations:
doanh chung » doanh nhung, doanh thuong, doan hung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
dung cong » dung trong
hang cong » dang cong, hang nong, bang cong
dung dat » dung va, dung tai
chung tu » chung cu, thong tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - thanh dung dat ((dung cong) or (hang cong)) doanh chung tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh dung dat ((dung cong) OR (hang cong)) doanh chung tu.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh dung dat ((dung cong) or (hang cong)) doanh chung tu*.