Perhaps you should try some spelling variations:
thanh dan » thanh san, thanh van, thanh dat
va thanh » gia thanh, ban thanh, va tinh
ly quang » le quang, vu quang
quang xa » quan xa, quang ma, quang va
su sach » vu sach
dan cua » dan ca, ban cua, dai cua
cua tre » cua te, cuu tre, cua triet
so sach » so sanh, bo sach, co sach
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cai

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) OR (so sach)) ly quang xa hoi. hieu ((va cam) or (va cao)) xuc va thanh dan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ly quang xa hoi. hieu ((va cam) OR (va cao)) xuc va thanh dan cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ly quang xa hoi. hieu ((va cam) or (va cao)) xuc va thanh dan cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ly quang xa hoi. hieu ((va cam) or (va cao)) xuc va thanh dan cua tre*.