Perhaps you should try some spelling variations:
van nang » van quang, van ban, van dong
dao hanh » dao thanh, dang hanh, ban hanh
sach van » sach han, sach va, bach van
thuc dao » thuc dan, thuc day, chuc dao
te sach » toc sach
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua
cua te » cua tu
ve cac » vien cac
ve cai » va cai, ve tai, ve cau

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

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