Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
hanh ve » hanh vi, hanh va, hanh kem
xa hanh » xa thanh, xa khanh, va hanh
nam xuc » cam xuc, nam xua, nam thuc
va cham » va chat
va tham » van tham, va thanh, va thuat
sac ly » sac ky
xuc xa » tuc xa, buc xa
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ly ((va tham) OR (va cham)) ho. hieu van nam xuc xa hanh ve ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ly ((va tham) OR (va cham)) ho. hieu van nam xuc xa hanh ve ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ly ((va tham) OR (va cham)) ho. hieu van nam xuc xa hanh ve ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: tu sac ly ((va tham) OR (va cham)) ho. hieu van nam xuc xa hanh ve ((cua tre) or (cuu tre))*.