Perhaps you should try some spelling variations:
tan thanh » tran thanh, tang thanh, toan thanh
thanh dai » thanh hai, thanh tai, thanh dat
dang xay » dang van, van xay
duoc tan » duc tan, duoc ban, duoc dan
sang ky » sang kyo, dang ky, tang ky
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
san ky » van ky, dan ky, ban ky
ve tao » ve bao, de tao, ve tac

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 (sang ky)) dang xay hoi. hieu ve tao duoc tan thanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((san ky) OR (sang ky)) dang xay hoi. hieu ve tao duoc tan thanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((san ky) OR (sang ky)) dang xay hoi. hieu ve tao duoc tan thanh dai cua tre*.