Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoai nam de snippets" » "hai nam de snippets", "loai nam de snippets", "hoang nam de snippets", "hoai nam da snippets", "hoai nam do snippets", "hoai nam he 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: (((("hoai nam 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: (((("hoai nam de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoai nam de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoai nam de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.