Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
duong cong » dung cong, luong cong, duong trong
hanh hang » thanh hang, hang hang, hanh han
va duong » van duong, va tuong, va huong
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (chiet tach)) - hanh hang va duong cong ((dan than) or (dan chan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chiet tach)) - hanh hang va duong cong ((dan than) OR (dan chan)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (chiet tach)) - hanh hang va duong cong ((dan than) or (dan chan)) tap*.