Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cua triet, dua tren
te sach » toc sach
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
cuu tre » cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa

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 nang ma hoi. hieu ve cham duc ((va tinh) OR (may tinh)) viet ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang ma hoi. hieu ve cham duc ((va tinh) OR (may tinh)) viet ((cua tre) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ma hoi. hieu ve cham duc ((va tinh) OR (may tinh)) viet ((cua tre) or (cuu tre))*.