Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, thai thuc
tam thuc » am thuc, nam thuc, dam thuc
lam chat » luan chat, cao chat, ly chat
hoc sach » hoc sinh, hoc cac, hoc anh
chat tre » chay tren, chat tai, cho tre
hieu tu » chieu tu, hieu tuc, hien tu
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
nang xa » nang x, lang xa, nang ma

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: hoc sach ky nang xa hoi. hieu tu ((tam thuc) OR (tham thuc)) ((va hanh) OR (va danh)) lam chat tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky nang xa hoi. hieu tu ((tam thuc) OR (tham thuc)) ((va hanh) or (va danh)) lam chat tre~".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky nang xa hoi. hieu tu ((tam thuc) OR (tham thuc)) ((va hanh) or (va danh)) lam chat tre*.