Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan che phe snippets" » "han che phe snippets", "phan che phe snippets", "nhan nghe phe snippets", "nhan che phu snippets", "nhan che pham snippets", "nhan che phap 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: (((("nhan che phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan che phe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan che phe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan che phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.