Perhaps you should try some spelling variations:
ky tang » kho tang, ky trong, tay tang
ky dang » ky danh
hieu va » lieu va, hieu qua
huu loc » hau loc, muu luoc
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
va huu » vu huu
loc va » hoc va, luc va
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ((((ky tang) or (ky dang))) or (ky nang)) xa hoi. hieu va huu loc va hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ((((ky tang) OR (ky dang))) OR (ky nang)) xa hoi. hieu va huu loc va hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ((((ky tang) or (ky dang))) or (ky nang)) xa hoi. hieu va huu loc va hanh di cua tre*.