Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
va cham » va chat, va tham
danh vi » dinh vi, danh di, danh va
cua tre » cuu tre, cua triet, dua tren
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu va cham duc va ((danh vi) OR (hanh vi)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang x hoi. hieu va cham duc va ((danh vi) OR (hanh vi)) ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x hoi. hieu va cham duc va ((danh vi) OR (hanh vi)) ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. hieu va cham duc va ((danh vi) OR (hanh vi)) ((cua tre) or (cua te))*.