Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
bo sach » co sach, hoc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc day
va lam » van lam, va lap
vi cua » vai cua, di cua
cua te » cua tu

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

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