Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lang van do snippets" » "dang van do snippets", "tang van do snippets", "hoang van do snippets", "lang van dao snippets", "lang van de snippets", "lang van du 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: (((("lang van do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lang van do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang van do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang van do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.