Perhaps you should try some spelling variations:
sach kem » hanh kem
cao thuc » cao thuoc, bao thuc, can thuc
hanh vai » hanh vi, hanh va, hanh tai
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
sac ky » cac ky, sai ky
ve cao » va cao, ve bao, ve cac
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((sach kem) or (sac ky)) nang xa hoi. hieu ve cao thuc va hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((sach kem) OR (sac ky)) nang xa hoi. hieu ve cao thuc va hanh vai cua tu.
• Adding a wildcard symbol may retrieve word variants: thuat ((sach kem) or (sac ky)) nang xa hoi. hieu ve cao thuc va hanh vai cua tu*.