Perhaps you should try some spelling variations:
hieu sau » hieu suat, tieu su, hieu va
va thanh » ban thanh, va tinh, le thanh
sang lai » sang tai, sang lap, mang lai
chat duc » chat xuc, chat doc, chet duoc
ky sang » ky nang, ky dang, ky tang
lai roi » lai hoi, loi roi
hieu su » tieu su, hieu so, hieu suat
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky sang lai roi. ((hieu su) or (hieu sau)) chat duc ((va thanh) OR (gia thanh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang lai roi. ((hieu su) OR (hieu sau)) chat duc ((va thanh) OR (gia thanh)) vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky sang lai roi. ((hieu su) or (hieu sau)) chat duc ((va thanh) OR (gia thanh)) vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang lai roi. ((hieu su) or (hieu sau)) chat duc ((va thanh) OR (gia thanh)) vi cua te*.