Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
va trinh » van trinh, va tinh, lap trinh
trinh vi » trinh va, trinh ve, trinh viet
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
lam xuc » cam xuc, lam duoc
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang xa hoi. ((thien van) or (lieu va)) lam xuc va trinh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. ((thien van) OR (lieu va)) lam xuc va trinh vi ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. ((thien van) or (lieu va)) lam xuc va trinh vi ((cua tre) or (cua triet))*.