Perhaps you should try some spelling variations:
duc manh » suc manh, duc anh, duc minh
hanh vai » hanh vi, hanh va, hanh tai
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
duc van » duc va, duc tan, duc phan
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac

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) or (do sanh)) ky tang xa hoi. hieu ve cac ((duc van) or (duc manh)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sanh) OR (do sanh)) ky tang xa hoi. hieu ve cac ((duc van) OR (duc manh)) hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((so sanh) or (do sanh)) ky tang xa hoi. hieu ve cac ((duc van) or (duc manh)) hanh vai cua tre*.