Perhaps you should try some spelling variations:
ban hanh » ban hang
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
sang xa » song xa, lang xa, sang ma
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, dao hanh
va danh » va dinh, va dan, dia danh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
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: te sach ky sang xa hoi. hieu ve cam xuc ((((va hanh) OR (ban hanh))) or (va danh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky sang xa hoi. hieu ve cam xuc ((((va hanh) OR (ban hanh))) OR (va danh)) vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky sang xa hoi. hieu ve cam xuc ((((va hanh) OR (ban hanh))) or (va danh)) vai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky sang xa hoi. hieu ve cam xuc ((((va hanh) OR (ban hanh))) or (va danh)) vai cua tre*.