Perhaps you should try some spelling variations:
hanh than » hanh han, hanh nhan, hanh phan
van hanh » van thanh, ban hanh, van anh
than cua » nhan cua, thai cua, ban cua
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu van
hieu va » lieu va, hieu qua
duc van » duc va, duc tan, duc manh
cua tre » cua te, cuu tre, cua triet
su sai » su tai, su hai, su dai
sai ky » sac ky

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 xa hoi. ((hieu ve) OR (hieu va)) pham duc van hanh than cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky dang xa hoi. ((hieu ve) OR (hieu va)) pham duc van hanh than cua tre".
• Adding a wildcard symbol may retrieve word variants: su sai ky dang xa hoi. ((hieu ve) OR (hieu va)) pham duc van hanh than cua tre*.