This is the code

StringList results;
IntDict coincidence;

void setup() {

  String [] text = loadStrings("text.txt");
  String onePhrase = join(text, " ").toLowerCase();
  String [] phrases = splitTokens(onePhrase, ".?!");
  String search = "\\blaw.?\\b";
  String [] wordList = loadStrings("wordList.txt");

for (int i = 0; i<phrases.length; i ++) {
      String [] matching = match(phrases[i], search);
      if (matching != null) {
        results.append(phrases[i]); 
    }
  }

   String [] resultsArray = results.array();

   String joinResults = join(resultsArray, " ");
   String [] splitResults = splitTokens(joinResults, " -,.:;¿?¿!/_");

    for(int i = 0; i < splitResults.length; i++) {
    for (String searching : wordList) {
      if (splitResults[i].equals(searching)){
      coincidence.increment(splitResults[i]);
    }
   }
  }

But if I want to count how many times each word of the list appears together with the other ones, I need to remake the process a lot of times.

I tried with Array[][] but it doesn't work. Now I am stuck with the problem and I don't know how to proceed. I would appreciate any idea.

StringList list;
String [] search;

void setup() {

  String [] text = loadStrings("text.txt");
  String onePhrase = join(text, " ").toLowerCase();
  String [] phrases = splitTokens(onePhrase, ".?!");

  Table table = loadTable("listOfWords.csv", "header");

  for (int i = 0; i <table.getRowCount(); i ++) {
   TableRow row = table.getRow(i);
   list.append(row.getString("Word"));
   search = list.array();
  }

  for (int i = 0; i < phrases.length; i ++) {
    for (int j = 0; j < search.length; j ++) {
      String [][] matching = matchAll(phrases[i], search[j]);

       printArray(matching);
    }
  }
}

String sentence = "The unusually quick brown fox jumps over the lazy family dog repeatedly.";
println(sentence.indexOf("a"));
println(sentence.indexOf("e"));
println(sentence.indexOf("i"));
println(sentence.indexOf("o"));
println(sentence.indexOf("u"));
noLoop();