Perhaps you should try some spelling variations:
dang mai » dang hai, dang mau, dang bai
su triet » su viet, su tien, ve triet
tu tieng » luc tieng, tu tuong, tu trong
ky dang » ky nang, ky danh
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
hanh ca » hanh cac, hanh cat, hanh cua
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
soc va » hoc va, loc va, doc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky dang mai hoi. hieu ve cham soc va hanh ca ((su triet) or (tu tieng))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky dang mai hoi. hieu ve cham soc va hanh ca ((su triet) OR (tu tieng)).
• Adding a wildcard symbol may retrieve word variants: su sac ky dang mai hoi. hieu ve cham soc va hanh ca ((su triet) or (tu tieng))*.