Search capabilities in HTML Help

As I roll out the help to the users, I notice that many (mostly me, LOL) are frustrated by the primitive Search tab: no searching for phrases, no stemming or wild cards, no Boolean operators, and so on.

So I did some research and discovered some ways I can improve it, but I can't get it to work. (I'm using RoboHelp 9.)

Searching for Phrases

This, I discovered, after searching Peter Grainge's excellent site, is easy: Just use quotes! Okay, I should have tried that before I went looking, but thankfully Pete not only included that tip but a tip (in 8 - Navigation Pane) on changing the search prompt so that you can tell users that that's how to search for phrases. He says (and the RH 9 help says something similar) to do this:

To change the string from the default go to

File > Project Settings > General Tab > Advanced > LNG File Tab

and change FtsInputPrompt to your own string.

I tried that, closed it, recompiled, and no, it didn't change from the default. I closed the project, restarted RoboHelp 9, and tried again. Nope. What am I doing wrong?

Stemming

By "stemming", I mean typing part of a word and finding words that contain that part. Pete's site (in 10 - RoboHelp HTML - Features and Use) cites a question from someone who wants to "search on 'beam' to find 'beam', 'beams' and 'beaming'."

Pete's site says this:

Pete Lees responded with this:

You may need to check the language setting for each help file as only US English files support "stemmed" searches of the type that you described.

As I understand it, you can't set the language of an HTML Help file from within RoboHelp. Instead, you must open the project (.hhp) file in Notepad or HTML Help Workshop and add a line like this to the [OPTIONS] section:

Language=0x409 English (United States)

I tried that, editing the file with Notepad++, but once again, no luck (or, as they say across the pond, "No joy.") I closed the project, restarted RoboHelp 9, and tried again. Nope. What am I doing wrong?

Advanced Full-Text Search

On the Microsoft MSDN site, there are instructions for adding advanced full-text search that "allows a user to search using Boolean, wildcard, and nested expressions. A user can also limit the search to previous results, match similar words, or search topic titles only. When advanced full-text search is enabled, the Search tab in the Help Viewer is enhanced."

The instructions, of course, are for Microsoft's HTML Help Workshop, not RoboHelp. Here are the instructions. Does anyone know if you can do this manually? That is, add some lines to the .hhp file or something without using HTML Help Workshop?

http://msdn.microsoft.com/en-us/library/windows/desktop/ms670157%28v=vs.85%29.aspx