Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
cam duc » cao duc, pham duc, nam duoc
tu sac » tu sach, tu cac, tu san
nang o » nang co, nang ho, nang ro
tu can » tu ban, tu cac, thu canh
cua te » cua tu
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 sac) or (tu can)) ky nang o hoi. hieu ve ((cam duc) OR (cam xuc)) va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu can)) ky nang o hoi. hieu ve ((cam duc) OR (cam xuc)) va hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (tu can)) ky nang o hoi. hieu ve ((cam duc) OR (cam xuc)) va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu can)) ky nang o hoi. hieu ve ((cam duc) OR (cam xuc)) va hanh vai cua te*.