Perhaps you should try some spelling variations:
sang lap » sang tao, sang tai, dan lap
cham duc » pham duc, cham soc, pham duy
hanh tai » thanh tai, hang tai, han tai
sang ma » tang ma, nang ma, sang tao
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri 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 lap) or (sang ma)) hoi. hieu vu cham duc va hanh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((sang lap) OR (sang ma)) hoi. hieu vu cham duc va hanh tai cua te.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((sang lap) or (sang ma)) hoi. hieu vu cham duc va hanh tai cua te*.