Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
mai khoi » mai khoa, tai khoa, cac khoi
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
vai cuu » vai cua
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu van
ky danh » ky anh
ky dang » ky nang
xuc va » duc va, tuc va, luc va

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 dang) OR (ky danh)) mai khoi. ((hieu ve) or (hieu va)) cam xuc va hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky dang) OR (ky danh)) mai khoi. ((hieu ve) OR (hieu va)) cam xuc va hanh vai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky dang) OR (ky danh)) mai khoi. ((hieu ve) or (hieu va)) cam xuc va hanh vai cuu tre*".