Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
thu xang » thu hang, thu bang, thu dang
thanh vi » hanh vi, thanh va, thanh ve
cuu thuc » cuu tac
te sach » toc sach
xang xa » lang xa, mang xa, ang xa
hieu va » lieu va
xuc va » tuc va, luc va, xac va
vi cuu » vi luu, vinh cuu

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 thu xang xa hoi. ((hieu va) or (hieu qua)) tham ((xuc va) or (duc va)) thanh vi cuu thuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu xang xa hoi. ((hieu va) OR (hieu qua)) tham ((xuc va) OR (duc va)) thanh vi cuu thuc.
• Adding a wildcard symbol may retrieve word variants: te sach thu xang xa hoi. ((hieu va) or (hieu qua)) tham ((xuc va) or (duc va)) thanh vi cuu thuc*.