Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan che lo snippets" » "han che lo snippets", "phan che lo snippets", "nhan nghe lo snippets", "nhan che do snippets", "nhan che ho 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 lo 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 lo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan che lo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan che lo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.