Perhaps you should try some spelling variations:
can thuc » dan thuc, van thuc, cay thuc
hoi lang » hoa lang, hoi dan
lang van » dang van, tang van, hoang van
hoc cac » hoc cao
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
qua can » qua ban, qua cac, qua ca
van hoi » van hoa, van hoc, van hoe
so sanh » do sanh
cua tuc » cua duc, cua tu, cua thuoc
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc cac) or (so sanh)) hoi lang van hoi. hieu qua can thuc ((va hanh) or (va danh)) vi cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc cac) OR (so sanh)) hoi lang van hoi. hieu qua can thuc ((va hanh) OR (va danh)) vi cua tuc.
• Adding a wildcard symbol may retrieve word variants: ((hoc cac) or (so sanh)) hoi lang van hoi. hieu qua can thuc ((va hanh) or (va danh)) vi cua tuc*.