Perhaps you should try some spelling variations:
sang tao » hang tai
hanh lai » hanh lam, hanh tai, thanh lap
tu sach » thu sach, su sach, te sach
sach tu » sach thu, cach tu, sach ty
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
tao hoi » tao khoi, tao boi, tay hoi
tu sang » thu sang, tu san, tu lang
soc va » hoc va, loc va, goc va
doc va » duoc va, hoc va, duc va

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: tu sach tu sang tao hoi. hieu ve cham ((soc va) OR (doc va)) hanh lai ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tu sang tao hoi. hieu ve cham ((soc va) OR (doc va)) hanh lai ((cua tre) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: tu sach tu sang tao hoi. hieu ve cham ((soc va) OR (doc va)) hanh lai ((cua tre) or (cuu tre))*.