Perhaps you should try some spelling variations:
cam thuc » am thuc, nam thuc, cam thu
lang van » dang van, tang van, hoang van
toai cua » thai cua, toan cua, loai cua
van dinh » van minh, van dich, xuan dinh
vu sach » vu bach, su sach, vu khach
va dinh » va kinh, va tinh, vu dinh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu van
hieu va » lieu va, hieu qua
van hoi » van hoa, van hoc, van hoe
y lang » o lang, _ lang, tay lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y lang van hoi. ((hieu ve) or (hieu va)) cam thuc ((van dinh) OR (va dinh)) toai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y lang van hoi. ((hieu ve) OR (hieu va)) cam thuc ((van dinh) OR (va dinh)) toai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y lang van hoi. ((hieu ve) or (hieu va)) cam thuc ((van dinh) OR (va dinh)) toai cua tre*".