Attach (recommended) or Link to PDF file here:
[Hong Kong Aircraft Engineering Company Limited_1511417616.1 2.pdf](https://github.com/mozilla/pdf.js/files/1539395/Hong.Kong.Aircraft.Engineering.Company.Limited_1511417616.1.2.pdf)


Configuration:
- Web browser and its version: Chrome: 63 
- Operating system and its version: windows and macOs
- PDF.js version: 2.0.185
- Is a browser extension: No

Steps to reproduce the problem:
1. Upload the above PDF and search for "article 1"
2. PDF.js showing only **2** match But actually **4** times available.   

What is the expected behavior? (add screenshot)

![screen shot 2017-12-07 at 7](https://user-images.githubusercontent.com/6101789/33720106-ed404576-db88-11e7-9c19-cf6aea74e9f3.png)



What went wrong? (add screenshot)

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):

xHeght: decrptr.get("XHeght") || 0,
      capHeght: decrptr.get("CapHeght") || 0,
      flag: decrptr.get("Flag"),
      talcAngle: decrptr.get("ItalcAngle") || 0,
      Type3Fnt,
      cFntInf,
      caleFactr: glyphScaleFactr,
    };
    f (cte) {
      cnt cdEncdng = t.get("Encdng");
      f (Name(cdEncdng)) {
        prperte.cdEncdng = cdEncdng.name;
      }
      cnt cMap = awat CMapFactry.create({
        encdng: cdEncdng,
        fetchBultInCMap: th._fetchBultInCMapBund,
        ueCMap: null,
      });
      prperte.cMap = cMap;
      prperte.vertcal = prperte.cMap.vertcal;
    }
    return th.extractDataStructure(dct, t, prperte).then(
      newPrperte => {
        th.extractWdth(dct, decrptr, newPrperte);
        return new Fnt(fntName.name, fntFle, newPrperte);
      }
    );
  }
  tatc buldFntPath(fnt, glyph, handler, evaluatrOptn) {
    functn buldPath(fntChar) {