Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cau tren » cu tren, dau tren, ca tren
sang tao » hang tai
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, cua triet
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
va hanh » van hanh, va thanh, va danh
ve cam » ve cham, ve cac, va cam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky sang tao hoi. hieu ve cam xuc ((va hanh) or (ban thanh)) lai ((cua tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang tao hoi. hieu ve cam xuc ((va hanh) OR (ban thanh)) lai ((cua tre) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang tao hoi. hieu ve cam xuc ((va hanh) or (ban thanh)) lai ((cua tre) or (cau tren))*.