Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap quan do snippets" » "phap luan do snippets", "pham quang do snippets", "phap luat do snippets", "phap quan doi snippets", "phap quan doc snippets", "phap quang do 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: (((("phap quan 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: (((("phap quan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap quan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap quan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.