Perhaps you should try some spelling variations:
"creating vo hieu snippets" » "creating _ hieu snippets", "creating co hieu snippets", "creating va hieu snippets", "creating cao hieu snippets"
"creating a le snippets" » "creating _ le snippets", "reading a le snippets", "creating va le snippets", "creating ha le snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("creating vo hieu snippets") or ("creating a le snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("creating vo hieu snippets") OR ("creating a le snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( creating vo hieu snippets ) or ( creating a le snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("creating vo hieu snippets") or ("creating a le snippets"))) or ("locating bug code snippets"))*.