Perhaps you should try some spelling variations:
hoang van » hang va
cua triet » cua viet, su triet, va triet
ky hoang » huy hoang, duy hoang, ky nang
duc manh » suc manh, duc anh, duc minh
hanh vai » hanh vi, hanh va, hanh tai
so sanh » do sanh
sanh ky » hanh ky, sang ky, nganh ky
van hoi » van hoa, van hoc, van hoe
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, dua tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky hoang van hoi. hieu va cac ((duc tan) or (duc manh)) hanh vai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky hoang van hoi. hieu va cac ((duc tan) OR (duc manh)) hanh vai ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: so sanh ky hoang van hoi. hieu va cac ((duc tan) or (duc manh)) hanh vai ((cua tre) or (cua triet))*.