Perhaps you should try some spelling variations:
chiet tach » chieu sach
cong thanh » dong thanh, cong trinh, cong tan
tang luan » dung luan
cong manh » cong danh, duong manh, hoang manh
ho chiet » ho chieu, ho thiet, hoc thiet
tang cua » mang cua, hang cua, thong cua
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 - hanh ((tang cua) or (tang luan)) dung ((cong manh) OR (cong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh ((tang cua) OR (tang luan)) dung ((cong manh) OR (cong thanh)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - hanh ((tang cua) or (tang luan)) dung ((cong manh) OR (cong thanh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - hanh ((tang cua) or (tang luan)) dung ((cong manh) OR (cong thanh)) toan ban*.