Perhaps you should try some spelling variations:
trong doanh » trong nganh
chieu sach » chinh sach, chiet tach, chieu sang
tung doanh » dung doanh, nhung doanh, tung khoanh
cong vang » cong quang, cong ngang, cong san
cong lang » cong luong, cong quang, cong ngang
ho chieu » theo chieu, hoc thieu, mot chieu
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh ((tung doanh) OR (trong doanh)) nhung ((cong vang) or (cong lang)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((tung doanh) OR (trong doanh)) nhung ((cong vang) OR (cong lang)) phan lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((tung doanh) OR (trong doanh)) nhung ((cong vang) or (cong lang)) phan lap".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((tung doanh) OR (trong doanh)) nhung ((cong vang) or (cong lang)) phan lap*.