Perhaps you should try some spelling variations:
tieng sach » tieng anh, dien sach, kien sach
hoc tieng » hoc hien
tranh cua » manh cua
doanh cua » doanh luan
xuong dan » huong dan, tuong dan, nguong dan
xuong san » xuong song, cong san, dong san
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: hoc tieng sach - canh ((tranh cua) or (doanh cua)) nhung ((xuong dan) OR (xuong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tieng sach - canh ((tranh cua) OR (doanh cua)) nhung ((xuong dan) OR (xuong san)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc tieng sach - canh ((tranh cua) or (doanh cua)) nhung ((xuong dan) OR (xuong san)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc tieng sach - canh ((tranh cua) or (doanh cua)) nhung ((xuong dan) OR (xuong san)) toan ban*.