Perhaps you should try some spelling variations:
ve triet » va trien, su triet
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
dinh de » dinh ve, dinh du, dinh le
thuc va » thuc vat, thuc dan, thuc day
te sac » te sach, te cac, te san
ve cac » va cac, vien cac
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky tang ma hoi. hieu ((va cam) or (ve cac)) ((duc va) or (thuc va)) dinh de ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky tang ma hoi. hieu ((va cam) OR (ve cac)) ((duc va) OR (thuc va)) dinh de ve triet.
• Adding a wildcard symbol may retrieve word variants: te sac ky tang ma hoi. hieu ((va cam) or (ve cac)) ((duc va) or (thuc va)) dinh de ve triet*.