Perhaps you should try some spelling variations:
sang tao » hang tai
cham tuc » nham thuc, pham thuc, tham thuc
van doan » van doanh, van toan, van hoan
ky sang » ky nang, ky dang, ky tang
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va doan » va doanh, va dan, va don
di cua » dai cua, doi cua, de cua
vi cua » vai cua
tu sac » tu sach, tu cac, tu san
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 tuc ((va doan) or (van doan)) ((vi cua) OR (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang tao hoi. hieu ve cham tuc ((va doan) OR (van doan)) ((vi cua) OR (di cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky sang tao hoi. hieu ve cham tuc ((va doan) or (van doan)) ((vi cua) OR (di cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang tao hoi. hieu ve cham tuc ((va doan) or (van doan)) ((vi cua) OR (di cua)) tre*.