Perhaps you should try some spelling variations:
chiet tach » chieu sach
dung cong » dung trong
ho chiet » ho chieu, ho thiet, hoc thiet
anh bang » anh hoang, anh quang, tinh bang
anh hung » anh huong, manh hung, anh dung
cua dung » cua dang, cua dong, qua dung
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - ((anh bang) or (anh hung)) cua dung cong trinh ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - ((anh bang) OR (anh hung)) cua dung cong trinh ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - ((anh bang) or (anh hung)) cua dung cong trinh ((toan tap) or (toan ban))*.