Perhaps you should try some spelling variations:
hanh lam » thanh lap, hanh kem, hanh va
thu tang » thu trang, thu thang, thu hang
su sach » vu sach
lam cua » nam cua, lam chat
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
tang xa » trang xa, tang ma, lang xa
so sach » so sanh, bo sach, co sach
cua tre » cua te, cuu tre, cua triet
doc va » duoc va, hoc va, loc va

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)) thu tang xa hoi. hieu vu cham ((doc va) OR (duc va)) hanh lam cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) thu tang xa hoi. hieu vu cham ((doc va) OR (duc va)) hanh lam cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) thu tang xa hoi. hieu vu cham ((doc va) OR (duc va)) hanh lam cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) thu tang xa hoi. hieu vu cham ((doc va) OR (duc va)) hanh lam cua tre*.