Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung ty de snippets" » "nhung ky de snippets", "nhung y de snippets", "nhung thay de snippets", "nhung te de snippets", "nhung ly de snippets", "nhung ty da 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 ty 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 ty de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung ty de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung ty de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.