Perhaps you should try some spelling variations:
can thiet » dan thiet, cac thiet, cad thiet
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
dang ma » dang mau, dang mam, dang mat
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
xuc van » duc van, luc van, vuc van
tu sac » tu sach, tu cac, tu bac
tu san » thu san, tu ban, tu can
ma hoi » mai hoi, xa hoi, ma hoa
vi can » voi can, vi van, i can

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu san)) ky dang ma hoi. hieu ve cham xuc van hanh vi can thiet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky dang ma hoi. hieu ve cham xuc van hanh vi can thiet".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky dang ma hoi. hieu ve cham xuc van hanh vi can thiet*.