Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
nam xuc » nam xua, nam thuc, nam duoc
sach ky » sach y, sach ty, sach kem
dang ma » dang mau, dang mam, dang mat
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ky) OR (sac ky)) dang ma hoa. hieu van ((nam xuc) or (cam xuc)) va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) dang ma hoa. hieu van ((nam xuc) OR (cam xuc)) va hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sac ky)) dang ma hoa. hieu van ((nam xuc) or (cam xuc)) va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sac ky)) dang ma hoa. hieu van ((nam xuc) or (cam xuc)) va hanh vai cua tre*.