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