Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
hoc sach » hoc sinh, hoc cac, hoc anh
lam chat » luan chat, cao chat, ly chat
dia danh » dia ban, gia dinh
chat tai » chat thai, cao tai, khau tai
tu tham » tru tham, tu cham, tu kham
va hanh » van hanh, va thanh, ban hanh
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va dan, va thanh
hieu tu » chieu tu, hieu tuc, hien tu
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 tham thuc ((va hanh) OR (((va danh) OR (dia danh)))) lam chat tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky nang xa hoi. hieu tu tham thuc ((va hanh) or (((va danh) OR (dia danh)))) lam chat tai~".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky nang xa hoi. hieu tu tham thuc ((va hanh) or (((va danh) OR (dia danh)))) lam chat tai*.