Perhaps you should try some spelling variations:
sach van » sach han, sach va, bach van
van nang » van quang, van ban, van dong
cay lanh » cao lan, cay lam, cay dan
cay xanh » cao anh, day manh, gay anh
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
va nham » va cham, va tham, va kham
va nha » va nho, ve nha
di cua » dai cua, doi cua, de cua
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach van nang xa hoi. lieu ((va nham) or (va nha)) thuc ((cay xanh) or (cay lanh)) di cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach van nang xa hoi. lieu ((va nham) OR (va nha)) thuc ((cay xanh) OR (cay lanh)) di cua su.
• Adding a wildcard symbol may retrieve word variants: su sach van nang xa hoi. lieu ((va nham) or (va nha)) thuc ((cay xanh) or (cay lanh)) di cua su*.