Perhaps you should try some spelling variations:
thanh lam » thanh lap, hanh lam, thanh nam
va triet » va thiet, va trien, ve triet
va thanh » gia thanh, ban thanh, va tinh
hieu va » lieu va, hieu qua
vu sach » vu bach, su sach, vu khach
hieu ve » hieu van
lam va » nam va, dam va, lam ha
xuc va » duc va, tuc va, luc va
vu sac » vu san, va sac, vu cac
nang o » nang co, nang ho, nang ro
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: ((vu sac) OR (vu sach)) ky nang o hoi. ((hieu ve) or (hieu va)) cam xuc va thanh lam va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sac) OR (vu sach)) ky nang o hoi. ((hieu ve) OR (hieu va)) cam xuc va thanh lam va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sac) OR (vu sach)) ky nang o hoi. ((hieu ve) or (hieu va)) cam xuc va thanh lam va triet".
• Adding a wildcard symbol may retrieve word variants: ((vu sac) OR (vu sach)) ky nang o hoi. ((hieu ve) or (hieu va)) cam xuc va thanh lam va triet*.