Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
hieu van » hieu va, thien van, lieu va
va nang » van nang, da nang, cam nang
va lang » hoa lang
cao duc » dao duc, cao suc, giao duc
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va cua » va chua, via cua, ca cua
san y » dan y, san _

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat san y nang xa hoi. ((hieu ve) or (hieu van)) cao duc ((va lang) OR (va nang)) va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san y nang xa hoi. ((hieu ve) OR (hieu van)) cao duc ((va lang) OR (va nang)) va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san y nang xa hoi. ((hieu ve) or (hieu van)) cao duc ((va lang) OR (va nang)) va cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat san y nang xa hoi. ((hieu ve) or (hieu van)) cao duc ((va lang) OR (va nang)) va cua tre*.