Perhaps you should try some spelling variations:
danh xay » dang xay, manh xay, anh xay
hanh tai » thanh tai, hang tai, han tai
ky danh » ky anh, ky dang
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va
cac luc » cau luc, coc luc, cac nuoc
va hanh » van hanh, va thanh, va danh
cuc tre » duc tre, cua tre, cuu tre
tu sai » tu bai, tu san, tu cai
sai ky » sac 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 sai ky danh xay hoi. ((hieu va) OR (hieu qua)) cac luc va hanh tai cuc tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky danh xay hoi. ((hieu va) OR (hieu qua)) cac luc va hanh tai cuc tre".
• Adding a wildcard symbol may retrieve word variants: tu sai ky danh xay hoi. ((hieu va) OR (hieu qua)) cac luc va hanh tai cuc tre*.