Perhaps you should try some spelling variations:
ban hanh » ban hang
cua tre » cua te, cuu tre, cua triet
lai cua » dai cua, hai cua, lai chau
hieu ve » hieu va, hieu van
ban anh » ban banh, ban danh, bang anh
cac xuc » cam xuc, cac nuoc, chat xuc
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
ma hoi » mai hoi, ma hoa, me hoi
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: tu sai ky nang ((ma hoi) or (xa hoi)). hieu ve cac xuc ((ban anh) OR (ban hanh)) lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ((ma hoi) OR (xa hoi)). hieu ve cac xuc ((ban anh) OR (ban hanh)) lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang ((ma hoi) or (xa hoi)). hieu ve cac xuc ((ban anh) OR (ban hanh)) lai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ((ma hoi) or (xa hoi)). hieu ve cac xuc ((ban anh) OR (ban hanh)) lai cua tre*.