Perhaps you should try some spelling variations:
va danh » va dan, va hanh, dia danh
nang xa » lang xa, nang ma, mang xa
cho cua » co cua, chi cua, cho ca
va dinh » van dinh, va kinh, va tinh
hieu va » lieu va, hieu qua
tu sai » tu bai, tu san, tu cai
va coc » va cuoc, va cac, va hoc
sai ky » sac ky
cua cu » cua chu, cua cau, cua su

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 ((nang xa) OR (nang x)) hoi. hieu va coc luc ((va danh) or (va dinh)) cho cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky ((nang xa) OR (nang x)) hoi. hieu va coc luc ((va danh) OR (va dinh)) cho cua cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky ((nang xa) OR (nang x)) hoi. hieu va coc luc ((va danh) or (va dinh)) cho cua cu".
• Adding a wildcard symbol may retrieve word variants: tu sai ky ((nang xa) OR (nang x)) hoi. hieu va coc luc ((va danh) or (va dinh)) cho cua cu*.