Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
nam thuc » nam thuoc, am thuc, nam thu
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
san ky » sang ky, van ky, ban ky
dan ky » van ky
dam tu » nam tu, cam tu, tam tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((san ky) OR (dan ky)) nang x ho. hieu ve ((nam thuc) or (dam tu)) va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((san ky) OR (dan ky)) nang x ho. hieu ve ((nam thuc) OR (dam tu)) va hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((san ky) OR (dan ky)) nang x ho. hieu ve ((nam thuc) or (dam tu)) va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((san ky) OR (dan ky)) nang x ho. hieu ve ((nam thuc) or (dam tu)) va hanh vai cua tre*.