Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
van xanh » van anh, van hanh, van manh
sang tao » hang tai
cham duc » pham duc, cham soc, pham duy
te sach » toc sach
hieu va » lieu va, hieu qua
xanh di » danh di, vanh dai, xanh tai
duc van » duc va, duc tan, duc manh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu van
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
di cua » dai cua, doi cua, de cua

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: ((te sach) OR (thu sach)) ky sang tao hoi. ((hieu ve) OR (hieu va)) cham duc van xanh di cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thu sach)) ky sang tao hoi. ((hieu ve) or (hieu va)) cham duc van xanh di cua tre*.