Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
tru nang » tra nang, tri nang, truc nano
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
tu cach » tu cac
su cac » tu cac, su cao, su can
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (su cac)) tru nang ((x hoi) OR (o hoi)). hieu ve cam xuc va hanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su cac)) tru nang ((x hoi) OR (o hoi)). hieu ve cam xuc va hanh vi cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (su cac)) tru nang ((x hoi) OR (o hoi)). hieu ve cam xuc va hanh vi cua viet".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su cac)) tru nang ((x hoi) OR (o hoi)). hieu ve cam xuc va hanh vi cua viet*.