Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cua thuoc » nha thuoc, cay thuoc, cua nuoc
va thanh » gia thanh, ban thanh, va tinh
sang lai » sang tai, sang lap, mang lai
cua tuc » cua duc, luat tuc, cua nuoc
chao tu » chao xu, cho tu, cao tu
su chao » su cao, sau chan
hieu su » hieu sau, tieu su, hieu so
lai hoi » dai hoi, lai hoa, lai roi
ky sang » ky nang, ky dang, ky tang
sai ky » sac ky
cua tu » cua su, cua cu, cua te
tu sai » tu bai, tu san, tu cai

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 sang lai hoi. hieu su chao tu va thanh vai ((((cua tuc) OR (cua tu))) or (cua thuoc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky sang lai hoi. hieu su chao tu va thanh vai ((((cua tuc) OR (cua tu))) OR (cua thuoc)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky sang lai hoi. hieu su chao tu va thanh vai ((((cua tuc) OR (cua tu))) or (cua thuoc))".
• Adding a wildcard symbol may retrieve word variants: tu sai ky sang lai hoi. hieu su chao tu va thanh vai ((((cua tuc) OR (cua tu))) or (cua thuoc))*.