Perhaps you should try some spelling variations:
ky lang » ky nang, ky dang, ky tang
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
cuu tre » cua tre, cau tren, cau treo
ha hoi » hoa hoi, ha noi, va hoi
soc va » hoc va, loc va, goc va
doc va » duoc va, hoc va, duc va
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky lang ((ha hoi) or (xa hoi)). hieu va tham ((soc va) or (doc va)) hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky lang ((ha hoi) OR (xa hoi)). hieu va tham ((soc va) OR (doc va)) hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky lang ((ha hoi) or (xa hoi)). hieu va tham ((soc va) or (doc va)) hanh vi cuu tre*.