Perhaps you should try some spelling variations:
dong xay » dang xay, cong xay, mong xay
van hanh » van thanh, ban hanh, van anh
chua tre » chua tri, cua tre, chua trieu
tu cach » tu cac
cach tu » cach thuc
xay hoi » xa hoi, tay hoi, cay phoi
va cham » va tham
va chat » van chat, va phat, cao chat
lai van » hai van, mai van, lai va
hanh va » hang va, hanh vi
va chua » vua chua, ca chua, va chu

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 dong xay hoi. hieu ((va cham) OR (va chat)) lai van hanh va chua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach tu dong xay hoi. hieu ((va cham) OR (va chat)) lai van hanh va chua tre".
• Adding a wildcard symbol may retrieve word variants: tu cach tu dong xay hoi. hieu ((va cham) OR (va chat)) lai van hanh va chua tre*.