Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » thong cong, hang cong, nhung don
thanh pham » thanh phan, thanh pho, thanh hai
tranh cua » doanh cua, manh cua
ho chieu » theo chieu, hoc thieu, doi chieu
pham can » pham van, pham lan, pham ca

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 - canh tranh cua ((nhung cong) or (((dung cong) OR (dung trong)))) thanh pham can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh tranh cua ((nhung cong) OR (((dung cong) OR (dung trong)))) thanh pham can.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - canh tranh cua ((nhung cong) or (((dung cong) OR (dung trong)))) thanh pham can".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh tranh cua ((nhung cong) or (((dung cong) OR (dung trong)))) thanh pham can*.