Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi luan doi snippets" » "hoa luan doi snippets", "hoc luan doi snippets", "khoa luan doi snippets", "hoi quan doi snippets", "hoi lua doi snippets", "hoi luan gioi 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: (((("hoi luan doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi luan doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi luan doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi luan doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.