Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
nang xa » nang x, lang xa, nang ma
hieu le » hieu ve, hieu he, hieu ly
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
cua tuc » cua duc, cua thuoc, luat tuc
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
le nam » ly nam, he nam, le na
cua tu » cua su, cua cu, cua vu

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

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