Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh dung » thanh dung, anh dung, hanh dong
cua trong » cua truong, cua trung, qua trong
chu sach » cau sach, thu sach, chuc hach
dung cua » dung luan, dung cho
dan toan » van toan, dan than, manh toan
van tai » von tai, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu sach) OR (chieu sach)) - hanh dung cua trong cong ((dan toan) or (van tai)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu sach) OR (chieu sach)) - hanh dung cua trong cong ((dan toan) OR (van tai)) tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu sach) OR (chieu sach)) - hanh dung cua trong cong ((dan toan) or (van tai)) tap*".