Perhaps you should try some spelling variations:
sach van » sach han, bach van, cach van
day hanh » day nhanh, day thanh, dao hanh
thuc day » thuc dan, thuc vat
sach va » sach xa, sach ha, sach dao
lang xa » lang ha, dang xay, lang van
va cham » va chat, va tham
vi cua » vai cua, di cua
ve cai » va cai, ve cac, ve tai
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 van) or (sach va)) lang xa hoi. hieu ((ve cai) or (va cham)) thuc day hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach van) OR (sach va)) lang xa hoi. hieu ((ve cai) OR (va cham)) thuc day hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sach van) or (sach va)) lang xa hoi. hieu ((ve cai) or (va cham)) thuc day hanh vi cua te*.