Perhaps you should try some spelling variations:
dia danh » dia ban, gia dinh
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
tu nang » tru nang, tu nong, tu nano
hieu tu » chieu tu, hieu tuc, hien tu
van hoi » van hoa, van hoc, van hoe
ky tang » ky nang, ky dang, kho tang
ky lang » ky nang, ky dang, tay lang
tu dan » tuc dan, tu ban, cu dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dan ((ky lang) OR (ky tang)) van hoi. hieu tu nang luc ((va hanh) or (dia danh)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dan ((ky lang) OR (ky tang)) van hoi. hieu tu nang luc ((va hanh) OR (dia danh)) dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu dan ((ky lang) OR (ky tang)) van hoi. hieu tu nang luc ((va hanh) or (dia danh)) dai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu dan ((ky lang) OR (ky tang)) van hoi. hieu tu nang luc ((va hanh) or (dia danh)) dai cua tre*.