Perhaps you should try some spelling variations:
mai khoi » mai khoa, tai khoa, cac khoi
va hanh » van hanh, va thanh, va danh
cao xuc » cam xuc, cao duc, cao suc
hieu va » lieu va, hieu qua
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
ma hoi » mai hoi, xa hoi, ma hoa
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
cua te » cua tu

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) or (su sach)) ky nang ((ma hoi) or (mai khoi)). hieu va cao xuc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang ((ma hoi) OR (mai khoi)). hieu va cao xuc va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang ((ma hoi) or (mai khoi)). hieu va cao xuc va hanh vi cua te*.