Perhaps you should try some spelling variations:
dan thiet » luan thiet, toan thiet, doan thien
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
ky dang » ky nang
ky danh » ky anh
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » va thanh, va danh, ban hanh
tu sac » tu sach, tu cac, tu san
vi dan » voi dan, vi dai, va dan

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 dang) OR (ky danh)) ma hoa. hieu ve cham xuc ((va hanh) or (van hanh)) vi dan thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky dang) OR (ky danh)) ma hoa. hieu ve cham xuc ((va hanh) OR (van hanh)) vi dan thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ((ky dang) OR (ky danh)) ma hoa. hieu ve cham xuc ((va hanh) or (van hanh)) vi dan thiet".
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky dang) OR (ky danh)) ma hoa. hieu ve cham xuc ((va hanh) or (van hanh)) vi dan thiet*.