Perhaps you should try some spelling variations:
thanh vinh » thanh tinh, than kinh, thanh van
thanh binh » thai binh, than kinh, tinh binh
hieu van » hieu va, thien van, lieu va
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, van bac
xuc van » luc van, xuc ban, thuc van
duc van » duc va, duc tan, duc manh
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang xa hoi. hieu van cac ((xuc van) OR (duc van)) ((thanh vinh) or (thanh binh)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu van cac ((xuc van) OR (duc van)) ((thanh vinh) OR (thanh binh)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu van cac ((xuc van) OR (duc van)) ((thanh vinh) or (thanh binh)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu van cac ((xuc van) OR (duc van)) ((thanh vinh) or (thanh binh)) cua tre*.