Perhaps you should try some spelling variations:
dang xay » dang van, van xay
chai cua » chat cua, thai cua, chi cua
thanh vi » hanh vi, thanh va, thanh ve
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
va chai » va cai, va chat, va cham
cua gia » cua giao, qua gia
cua tre » cua te, cuu tre, cua triet
so sai » so dai, so hai, do sai
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sai ky ((nang xa) or (dang xay)) hoi. lieu va chai cua gia thanh vi ((cua tre) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sai ky ((nang xa) OR (dang xay)) hoi. lieu va chai cua gia thanh vi ((cua tre) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: so sai ky ((nang xa) or (dang xay)) hoi. lieu va chai cua gia thanh vi ((cua tre) or (cua viet))*.