Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
dai nang » da nang, dai dang, dai thang
sach dai » sach dao, sach bai, sach dat
bo sach » co sach, hoc sach
tuc gia » tac gia, duc gia, toc gia
cua tre » cua te, cuu tre, cua triet
van hai » van ha, van chat, van hanh
van hac » van hoc, van ha, van chat
nang xa » nang x, lang xa, nang ma
la tren » loai tren, dua tren, dat tren

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: bo sach dai nang xa hoi. thien ((van hac) OR (van hai)) tuc gia thanh van ((cua tre) OR (la tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach dai nang xa hoi. thien ((van hac) OR (van hai)) tuc gia thanh van ((cua tre) or (la tren))~".
• Adding a wildcard symbol may retrieve word variants: bo sach dai nang xa hoi. thien ((van hac) OR (van hai)) tuc gia thanh van ((cua tre) or (la tren))*.