Perhaps you should try some spelling variations:
dang may » mang may, dang xay, dung may
cham tuc » nham thuc, pham thuc, tham thuc
va thanh » gia thanh, ban thanh, va tinh
ky dang » ky nang, ky danh
may hoi » may thoi, tay hoi, mai hoi
hieu va » lieu va, hieu qua
va cham » va chat, va tham
toan su » tan su, toan tu, toan cau
toan du » tran duc, toan cau
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky dang may hoi. hieu va cham tuc va thanh ((toan su) or (toan du)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky dang may hoi. hieu va cham tuc va thanh ((toan su) OR (toan du)) triet.
• Adding a wildcard symbol may retrieve word variants: tu cac ky dang may hoi. hieu va cham tuc va thanh ((toan su) or (toan du)) triet*.