Perhaps you should try some spelling variations:
thanh van » thanh toan, thanh phan, thanh nhan
sach cao » sach dao, sach cap, mach cao
cao tang » cao dang
vu sach » vu bach, su sach, vu khach
tang xa » trang xa, tang ma, lang xa
xuc gia » duc gia, luc gia, tuc gia
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach cao tang xa hoi. hieu ((van nam) or (van lam)) xuc gia ((thanh van) OR (thanh san)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach cao tang xa hoi. hieu ((van nam) OR (van lam)) xuc gia ((thanh van) OR (thanh san)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach cao tang xa hoi. hieu ((van nam) or (van lam)) xuc gia ((thanh van) OR (thanh san)) cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach cao tang xa hoi. hieu ((van nam) or (van lam)) xuc gia ((thanh van) OR (thanh san)) cua tre*.