Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lon voi chat snippets" » "lon voi nhat snippets", "lon van chat snippets", "lon hop chat snippets", "lon loi chat snippets", "lon vi chat snippets", "lon vo chat 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: (((("lon voi chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lon voi chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lon voi chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lon voi chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.