Perhaps you should try some spelling variations:
duc manh » suc manh, duc anh, duc minh
cay phoi » cap phoi, tay hoi, cay cho
hieu ve » hieu va, hieu van
hanh ve » hanh vi, hanh va, hanh kem
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
xay hoi » xa hoi, tay hoi, gay thoi
ky dang » ky nang, ky danh
sai ky » sac ky
ve cam » ve cham, ve cac, va cam
ve cua » le cua, de cua, te cua
tu sai » tu bai, tu san, tu cai

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 dang ((xay hoi) OR (cay phoi)). hieu ve cam ((xuc van) or (duc manh)) hanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky dang ((xay hoi) OR (cay phoi)). hieu ve cam ((xuc van) OR (duc manh)) hanh ve cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky dang ((xay hoi) OR (cay phoi)). hieu ve cam ((xuc van) or (duc manh)) hanh ve cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sai ky dang ((xay hoi) OR (cay phoi)). hieu ve cam ((xuc van) or (duc manh)) hanh ve cua tre*.