Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cach thuc » anh thuc, cac thu
dang xay » dang van, van xay
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
xay hoi » xa hoi, tay hoi, cay phoi
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((cach tu) OR (cach thuc)) dang xay hoi. hieu ve cham ((ly von) or (le van)) thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((cach tu) OR (cach thuc)) dang xay hoi. hieu ve cham ((ly von) OR (le van)) thanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((cach tu) OR (cach thuc)) dang xay hoi. hieu ve cham ((ly von) or (le van)) thanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((cach tu) OR (cach thuc)) dang xay hoi. hieu ve cham ((ly von) or (le van)) thanh vai cua tre*.