nextbutton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String text = textView1.getText().toString();
                String wordToFind = searchtext.getText().toString();
                Pattern word = Pattern.compile(wordToFind);
                Matcher match = word.matcher(text);

               // while (match.find()) {

                    textView1.scrollTo(match.start());
                   // System.out.println("Found love at index "+ match.start() +" - "+ (match.end()-1));


               // }

            }
        });

   <EditText
            android:layout_marginBottom="20sp"
            android:layout_marginEnd="20sp"
            android:id="@+id/textView1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textIsSelectable="true"
            android:editable="false"
            android:scrollbars="horizontal"
            android:scrollHorizontally="true"
            />

int coord = StringUtils.indexOf(text,wordToFind);
                textView1.setSelection(coord);

 int coord=StringUtils.indexOf(text,wordToFind,startcoord+1);
                startcoord=coord;

startcoord=0;