Perhaps you should try some spelling variations:
lap hoat » tap hoa, dan hoat, lap dat
ky sang » ky dang, ky tang, duy sang
hieu su » hieu sau, tieu su, hieu so
su chao » su cao, sau chan
chao tu » chao xu, cho tu, cao tu
va hanh » van hanh, va thanh, va danh
tu san » thu san, tu can, vu san
tu ban » thu ban, te ban
vi cua » vai cua, di cua
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 san) or (tu ban)) ((ky sang) OR (ky nang)) lap hoat. hieu su chao tu va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu ban)) ((ky sang) OR (ky nang)) lap hoat. hieu su chao tu va hanh vi cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) or (tu ban)) ((ky sang) OR (ky nang)) lap hoat. hieu su chao tu va hanh vi cua te*".