Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
hanh vai » hanh vi, hanh va, hanh tai
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
loc va » hoc va, luc va
v nang » va nang, vu nang, van nang
x hoi » xa hoi, o hoi, 5 hoi
san v » san va, san vo, 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 v nang ((x hoi) OR (x ho)). hieu va tham ((xuc va) or (loc va)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san v nang ((x hoi) OR (x ho)). hieu va tham ((xuc va) OR (loc va)) hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san v nang ((x hoi) OR (x ho)). hieu va tham ((xuc va) or (loc va)) hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat san v nang ((x hoi) OR (x ho)). hieu va tham ((xuc va) or (loc va)) hanh vai cua tre*.