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