Perhaps you should try some spelling variations:
tinh bai » tinh bac, tinh hai, hinh bai
tinh vai » tinh va, tinh hai, tinh lai
cham tuc » nham thuc, pham thuc, tham thuc
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa
tu sac » tu sach, tu cac, tu san

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 nang ((ma hoa) or (mai hoi)). hieu ve cham tuc va ((tinh vai) or (tinh bai)) cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((ma hoa) OR (mai hoi)). hieu ve cham tuc va ((tinh vai) OR (tinh bai)) cua vat.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((ma hoa) or (mai hoi)). hieu ve cham tuc va ((tinh vai) or (tinh bai)) cua vat*.