Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
chiet tach » chieu sach
hoc chiet » hoc thiet, hoc nhiet, hoc hien
tang luan » dung luan
trung cua » truong cua, trung tuan, trung cap
ban thanh » ban hanh, ban hang
ban than » van thanh, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chiet tach - hanh ((tang luan) or (trung cua)) nhung huong ((ban than) OR (ban thanh)) man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chiet tach - hanh ((tang luan) OR (trung cua)) nhung huong ((ban than) OR (ban thanh)) man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chiet tach - hanh ((tang luan) or (trung cua)) nhung huong ((ban than) OR (ban thanh)) man".
• Adding a wildcard symbol may retrieve word variants: hoc chiet tach - hanh ((tang luan) or (trung cua)) nhung huong ((ban than) OR (ban thanh)) man*.