Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
ban hanh » ban hang
su sach » so sach, vu sach
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
ky dang » ky nang, ky danh
ky sang » ky nang, ky tang, duy sang
cua tre » cua te, cuu tre, cua triet

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 ((ky sang) or (ky dang)) ma hoa. hieu ve chat xuc ((va hanh) or (ban hanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky sang) OR (ky dang)) ma hoa. hieu ve chat xuc ((va hanh) OR (ban hanh)) vai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((ky sang) or (ky dang)) ma hoa. hieu ve chat xuc ((va hanh) or (ban hanh)) vai cua tre*.