Angular 8 Multi phrase search using ng2-pdf-viewer

Question

I'm working on an angular8 application and displaying a PDF using ng2-pdf-viewer library. Currently, I'm able to search the PDF for a single phrase using the code below.

searchQueryChanged(searchStr: string) {
    if(searchStr != null && searchStr.length > 0) {
      console.log("searchStr1 ::: ", searchStr);
      this.pdfComponent.pdfFindController.executeCommand('find', {
        highlightAll: true,
        caseSensitive: true,
        findPrevious: false,
        phraseSearch: true,
        query: searchStr
      });
    }
  }

I'd like to know if it is possible to search for an array of strings/phrases and highlight them all at the same time using ng2-pdf-viewer library or is there a much better way to highlight multiple strings in a given PDF.

Thanks, Ravi Teja Talari