Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung nga de snippets" » "nhung ngai de snippets", "nhung nha de snippets", "nhung ga de snippets", "nhung ngay de snippets", "nhung nga den 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: (((("nhung nga de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung nga de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung nga de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung nga de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.