Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
sach kem » hanh kem
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
vi cua » vai cua, di cua
va cau » van cau, va cac, va dau
luc va » duc va, tuc va, loc va
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: tu ((sach kem) or (sach y)) nang xa hoi. hieu va cau ((luc va) or (thuc dan)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (sach y)) nang xa hoi. hieu va cau ((luc va) OR (thuc dan)) hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (sach y)) nang xa hoi. hieu va cau ((luc va) or (thuc dan)) hanh vi cua te*.