Perhaps you should try some spelling variations:
thanh day » thanh dat, thanh tay, thanh dam
ban thanh » ban hanh, ban hang
chang xu » chang xue, chao xu, thong xu
day cua » dai cua
sach tu » sach thu, cach tu, sach uu
sach ty » sach y, sach thu, xach tay
cuc ban » cua ban, cac ban, cuu ban
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao
xu hoi » xa hoi, lu hoi, vu hoi
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tu)) chang xu hoi. hieu ((va cam) OR (va cao)) cuc ban thanh day cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) OR (sach tu)) chang xu hoi. hieu ((va cam) or (va cao)) cuc ban thanh day cua te~".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) OR (sach tu)) chang xu hoi. hieu ((va cam) or (va cao)) cuc ban thanh day cua te*.