Here, i have attached the PDF, that PDF document contains "Nudi" as an embedded font. When i searching the particular word (that in Nudi font), the search result selecting the word that context next to the exact word.

Link to PDF file (or attach file here):
[sample_pdf.zip](https://github.com/mozilla/pdf.js/files/229582/sample_pdf.zip)

Configuration:
- Web browser and its version: Mozilla 45.0.2
- Operating system and its version: Windows 7
- PDF.js version: 1.4.20-disc

What is the expected behavior? (add screenshot)
![find_01](https://cloud.githubusercontent.com/assets/17423938/14704922/c2e67f2c-07d4-11e6-9320-9aed2578d377.png)

return this._page;
  }
  set page(value) {
    this._page = value;
  }
}
describe("pdf_find_controller", function () {
  let eventBus;
  let pdfFindController;
  beforeEach(function (done) {
    const loadingTask = getDocument(buildGetDocumentParams("tracemonkey.pdf"));
    loadingTask.promise.then(function (pdfDocument) {
      eventBus = new EventBus();
      const linkService = new MockLinkService();
      linkService.setDocument(pdfDocument);
      pdfFindController = new PDFFindController({
        linkService,
        eventBus,
      });
      pdfFindController.setDocument(pdfDocument); 
      done();
    });
  });
  afterEach(function () {
    eventBus = null;
    pdfFindController = null;
  });
  function testSearch({ parameters, matchesPerPage, selectedMatch }) {