Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh van
sach thu » sach thue, sach thieu, sach tham
va thanh » gia thanh, ban thanh, va tinh
cham duc » pham duc, cham soc, pham duy
dat cua » dai cua, day cua, mat cua
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, xach tay
ma hoi » mai hoi, xa hoi, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ty) or (sach thu)) nang ((ma hoi) or (ma hoa)). hieu vu cham duc va thanh dat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach thu)) nang ((ma hoi) OR (ma hoa)). hieu vu cham duc va thanh dat cua tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach thu)) nang ((ma hoi) or (ma hoa)). hieu vu cham duc va thanh dat cua tre*.