Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"quan che cong snippets" » "quan he cong snippets", "han che cong snippets", "quan ha cong snippets", "quan cho cong snippets", "quan chi cong 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: (((("quan che cong snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan che cong snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan che cong snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan che cong snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.