Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
hanh mang » nhanh mang, hanh trang, nhanh lang
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
van van » van ban, tan van, van vat
san van » tan van, luan van, tran van

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