Perhaps you should try some spelling variations:
sang tao » hang tai
dua tren » dung tren
van hanh » van thanh, ban hanh, van anh
hanh lai » hanh lam, hanh tai, thanh lap
ky sang » ky nang, ky dang, ky tang
tao hoi » tao khoi, tao boi, tay hoi
ve cham » ve chat, vu cham, ve chim
va cham » va chat, va tham
luc van » luoc van, luu van, duc van
tu sac » tu sach, tu cac, tu san
cua tu » cua tuc, cua su, cua cu
sac ky » cac ky, sai ky

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 tao hoi. hieu ((ve cham) or (va cham)) luc van hanh lai ((dua tren) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang tao hoi. hieu ((ve cham) OR (va cham)) luc van hanh lai ((dua tren) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang tao hoi. hieu ((ve cham) or (va cham)) luc van hanh lai ((dua tren) or (cua tu))*.