Perhaps you should try some spelling variations:
thien van » thi van
van dinh » van minh, van dich, xuan dinh
kho tang » cao tang
va dinh » va kinh, va tinh, vu dinh
nam xuc » cam xuc, nam xua, nam thuc
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, ky trong
vi cua » vai cua, di cua
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ((ky tang) OR (kho tang)) xa hoi. thien van nam xuc ((va dinh) or (van dinh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ((ky tang) OR (kho tang)) xa hoi. thien van nam xuc ((va dinh) OR (van dinh)) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ((ky tang) OR (kho tang)) xa hoi. thien van nam xuc ((va dinh) or (van dinh)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te sac ((ky tang) OR (kho tang)) xa hoi. thien van nam xuc ((va dinh) or (van dinh)) vi cua tre*.