Book,  Part, Title, Chapter, Can.

1   1,   0,    4,   5, 87  |     recourse to the Holy See is difficult, and at the same time there
2   2,   2,    3,   7, 555 | solicitude for those who are in difficult circumstances or are troubled
3   4,   1,    7,   9, 1153|    makes the common life unduly difficult, provides the other spouse
4   6,   1,    6,   0, 1357|         been declared, if it is difficult for the penitent to remain
5   7,   1,    2,   1, 1425|     Bishop can entrust the more difficult cases or those of greater
6   7,   2,    2,   0, 1513|       before the judge. In more difficult cases, however, the parties
7   7,   2,    4,   3, 1558| impediment, it is impossible or difficult to come to the office of