Perhaps you should try some spelling variations:
ky dang » ky danh
hieu ve » hieu va, hieu van
cac xuc » cac nuoc, chat xuc, cac cuoc
tac anh » tac danh, tam anh, tao anh
anh tai » hanh tai, anh thai, vanh tai
tai cuu » tai cuc, tai buu, tai cua
cuu tre » cua tre, cau tren, cau treo
su sai » su tai, su hai, su dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ((ky dang) or (ky nang)) xa hoi. hieu ve ((cac xuc) OR (cam xuc)) tac anh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ((ky dang) OR (ky nang)) xa hoi. hieu ve ((cac xuc) OR (cam xuc)) tac anh tai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ((ky dang) or (ky nang)) xa hoi. hieu ve ((cac xuc) OR (cam xuc)) tac anh tai cuu tre".
• Adding a wildcard symbol may retrieve word variants: su sai ((ky dang) or (ky nang)) xa hoi. hieu ve ((cac xuc) OR (cam xuc)) tac anh tai cuu tre*.