Perhaps you should try some spelling variations:
thien van » thi van
toc sach » hoc sach, doc sach, thuoc sach
hanh lai » hanh lam, hanh tai, thanh lap
cham duc » pham duc, cham soc, pham duy
van cham » van chat, van tham, va cham
va hanh » van hanh, va thanh, va danh
nang xa » lang xa, nang ma, mang xa
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo

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: toc sach y ((nang xa) OR (nang x)) hoi. thien van cham duc va hanh lai ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y ((nang xa) or (nang x)) hoi. thien van cham duc va hanh lai ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: toc sach y ((nang xa) or (nang x)) hoi. thien van cham duc va hanh lai ((cua tre) OR (cuu tre))*.