Perhaps you should try some spelling variations:
sach tham » sach nha
thien van » thi van
sach thu » sach thue, sach thieu, cach thuc
duong xa » duong va, duong ma, dong xa
van lam » van nam
lam luc » lao luc, lam duoc
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va
va cua » va chua, via cua, ca cua

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 thu) or (sach tham)) duong xa hoi. thien van lam luc va hanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach thu) OR (sach tham)) duong xa hoi. thien van lam luc va hanh va cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach thu) or (sach tham)) duong xa hoi. thien van lam luc va hanh va cua tre*.