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