Perhaps you should try some spelling variations:
thien van » thi van
thanh vai » thanh hai, thanh van, thanh tai
hieu van » hieu va, lieu va, hieu ve
va thanh » gia thanh, ban thanh, va tinh
sang ky » sang kyo, dang ky, tang ky
lao luc » bao luc
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
dan ky » van ky
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((dan ky) or (sang ky)) nang x ho. ((hieu van) or (thien van)) lao luc va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((dan ky) OR (sang ky)) nang x ho. ((hieu van) OR (thien van)) lao luc va thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((dan ky) or (sang ky)) nang x ho. ((hieu van) or (thien van)) lao luc va thanh vai cua tre*.