Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban chat doc snippets" » "van chat doc snippets", "bao chat doc snippets", "luan chat doc snippets", "ban chat hoc snippets", "ban chau doc snippets", "ban thuat doc 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 chat doc 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 chat doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban chat doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban chat doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.