Perhaps you should try some spelling variations:
sach van » sach han, sach va, bach van
van nang » van quang, van ban, van dong
ban hanh » ban hang
su triet » su viet, ve triet
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
su tien » su kien, su hien, tu tieng
ve cam » ve cham, ve cac, va cam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach van nang xa hoi. hieu ve cam xuc ((tuan anh) OR (ban hanh)) ki ((su triet) OR (su tien))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach van nang xa hoi. hieu ve cam xuc ((tuan anh) or (ban hanh)) ki ((su triet) OR (su tien))~".
• Adding a wildcard symbol may retrieve word variants: te sach van nang xa hoi. hieu ve cam xuc ((tuan anh) or (ban hanh)) ki ((su triet) OR (su tien))*.