Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
lam chat » luan chat, cao chat, ly chat
chat tai » chat thai, cao tai, khau tai
nang xa » nang x, lang xa, nang ma
hieu tu » chieu tu, hieu tuc, hien tu
tu tham » tru tham, tu cham, tu kham
va hanh » van hanh, va thanh, va danh
sinh ky » sinh y, kinh ky, minh ky
va dan » ca dan, va dao, va dau

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