Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hoc thuc » hoc huu
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
nang xa » nang x, lang xa, nang ma
van hoc » van hoa
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
bach y » sach y
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach y nang xa hoi. hieu van hoc thuc van hanh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach y nang xa hoi. hieu van hoc thuc van hanh vi ((cua tre) OR (cuu tre))*.