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