When you generate OmniHelp, DITA2Go builds a search index that includes all the words in the converted files, except for a list of words to be excluded. DITA2Go applies an internal list of words to exclude:
[StopWords] ;about after again all already also always and any are been but can ;did does doing each for from has have having its may maybe might not ;see than that the their them then these they this those too use used ;uses using very want was when where which will with would you your
You can add your own list of words to exclude, or provide an alternate list, in the [StopWords] section of your OmniHelp configuration file.
To specify which list(s) of words to exclude from the search index, set the following option:
[OmniHelpOptions] ; UseDefaultStopWords = Yes (use default set, plus any added in your ; own [StopWords]) or No (use your own words only) UseDefaultStopWords=No
When UseDefaultStopWords=Yes, DITA2Go excludes from the search index the default words and any words listed in the [StopWords] section of your configuration file.
When UseDefaultStopWords=No, DITA2Go excludes only words listed under [StopWords] in your configuration file.
To augment the [StopWords] list after you generate OmniHelp, open myproj_ohs.js in a text editor, and copy unwanted words to the [StopWords] section of your project configuration file.