Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
hanh lai » hanh lam, hanh tai, thanh lap
tu cach » tu cac
lai cua » dai cua, hai cua, lai chau
va hanh » van hanh, va thanh, va danh
nang xa » nang x, lang xa, nang ma
tang ma » mang may, tang van
cua tre » cua te, cuu tre, cua triet
ve cao » va cao, ve cac, ve co
ve bao » te bao, va bao

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: tu cach thuc ((nang xa) OR (tang ma)) hoi. hieu ((ve cao) OR (ve bao)) duc va hanh lai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach thuc ((nang xa) or (tang ma)) hoi. hieu ((ve cao) OR (ve bao)) duc va hanh lai cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu cach thuc ((nang xa) or (tang ma)) hoi. hieu ((ve cao) OR (ve bao)) duc va hanh lai cua tre*.