Perhaps you should try some spelling variations:
dinh toai » dinh toi, dinh tai, tinh toan
toai cach » loi cach, tai cac, cai cach
cach viet » bach viet, anh viet, danh viet
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
va dinh » van dinh, va kinh, va tinh
tu can » tu ban, tu cac, thu canh
can ky » van ky, dan ky, ban ky
ma hoi » xa hoi, ma hoa, me hoi
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu can ky nang ((ma hoi) OR (mai hoi)). hieu ve cam xuc va dinh toai cach viet~".
• Adding a wildcard symbol may retrieve word variants: tu can ky nang ((ma hoi) OR (mai hoi)). hieu ve cam xuc va dinh toai cach viet*.