Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
hac thuc » hoc thuc, ha thuc, thach thuc
nang xa » nang x, lang xa, nang ma
van hac » van hoc, van ha, van hai
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
cua tre » cua te, dua tren, cua thep
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 hac thuc va hanh vi ((((cua tre) OR (cua triet))) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach y nang xa hoi. hieu van hac thuc va hanh vi ((((cua tre) OR (cua triet))) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu bach y nang xa hoi. hieu van hac thuc va hanh vi ((((cua tre) OR (cua triet))) or (cuu tre))*".