Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu sach » chinh sach, chiet tach, chieu sang
ho chieu » theo chieu, hoc thieu, doi chieu
dai cong » dai cuong, doi cong, dai hong
doan van » doan va, hoang van, luan van
van tan » van tuan, van ban, van tai
tan cao » toan cao, tao cao, tay cao

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 thuong ((dai cong) OR (tai cong)) doan van tan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh thuong ((dai cong) OR (tai cong)) doan van tan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh thuong ((dai cong) OR (tai cong)) doan van tan cao*.