Perhaps you should try some spelling variations:
duy sang » duy van, duy can, duy anh
thanh vi » hanh vi, thanh va, thanh ve
su sach » so sach, vu sach
va tham » van tham, va cham, va thanh
duc van » duc va, duc manh, duc phan
cua tre » cua te, cuu tre, cua triet
y sang » _ sang
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((y sang) OR (duy sang)) ma hoa. lieu va tham ((duc van) or (duc tan)) thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y sang) OR (duy sang)) ma hoa. lieu va tham ((duc van) OR (duc tan)) thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y sang) OR (duy sang)) ma hoa. lieu va tham ((duc van) or (duc tan)) thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ((y sang) OR (duy sang)) ma hoa. lieu va tham ((duc van) or (duc tan)) thanh vi cua tre*.