Perhaps you should try some spelling variations:
so nganh » so ngan, hoc nganh, moi nganh
nganh ky » nganh y, nganh xay, hanh ky
dia danh » dia ban, gia dinh
nang xa » nang x, lang xa, nang ma
van bac » van bao, van hac, dan bac
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

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