Perhaps you should try some spelling variations:
van pham » san pham, van phan, van tham
van phat » va phat, van chat, van phan
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
sang ky » sang kyo, dang ky, tang ky
nang xa » nang x, lang xa, nang ma
duc ban » duc tan, duc van, dua ban
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
san ky » van ky, dan ky, ban ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((san ky) or (sang ky)) nang xa hoi. thien ((van pham) OR (van phat)) duc ban hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((san ky) OR (sang ky)) nang xa hoi. thien ((van pham) OR (van phat)) duc ban hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((san ky) or (sang ky)) nang xa hoi. thien ((van pham) OR (van phat)) duc ban hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((san ky) or (sang ky)) nang xa hoi. thien ((van pham) OR (van phat)) duc ban hanh vai cua tre*.