よく使うので覚書

Private Sub Search()
On Error Goto Exception

    Dim Coll  As Collection
    Dim SQL() As String

    Set Coll = New Collection


    If Not IsNull([検索テキスト]) Then
        Coll.Add "[フィールド1] Like '*" & [検索テキスト] & "*'"
    End If

    If [検索チェック] = -1 Then
        Coll.Add "[チェックフィールド] = " & [検索チェック]
    End If

    If [検索チェック2] = 0 Then
        Coll.Add "[チェックフィールド2] = 0"
    End If


    If Coll.Count > 0 Then
        For i = 1 To Coll.Count
            ReDim Preserve SQL(i - 1) As String
            SQL(i - 1) = Coll(i)
        Next i
        DoCmd.ApplyFilter , Join(SQL, " And ")
        'Debug.Print Join(SQL, " And ") '確認用
    Else
        Me.FilterOn = False
    End If

Exit Sub
Exception:
    MsgBox Err.Description
End Sub