Perhaps you should try some spelling variations:
hieu sau » hieu su, hieu suat, tieu su
sau chao » sau cho, sau chan, cau cham
ky mang » ky nang, ky dang, ky tang
dinh vi » dinh ve, dinh viet, dinh tri
ke mang » ke nang, ke trang
lai roi » lai hoi, loi roi
danh vi » hanh vi, danh di, danh va
tu can » tu ban, tu cac, thu canh
cua te » cua tu
xu va » xu van, tu va, su 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 can ((ky mang) OR (ke mang)) lai roi. hieu sau chao xu va ((danh vi) or (dinh vi)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu can ((ky mang) OR (ke mang)) lai roi. hieu sau chao xu va ((danh vi) OR (dinh vi)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu can ((ky mang) OR (ke mang)) lai roi. hieu sau chao xu va ((danh vi) or (dinh vi)) cua te".
• Adding a wildcard symbol may retrieve word variants: tu can ((ky mang) OR (ke mang)) lai roi. hieu sau chao xu va ((danh vi) or (dinh vi)) cua te*.