Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban san chi snippets" » "ban soan chi snippets", "ban dan chi snippets", "ban can chi snippets", "ban van chi snippets", "ban luan chi snippets", "ban toan chi 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 san chi 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 san chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban san chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban san chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.