Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den cac can snippets" » "dien cac can snippets", "dan cac can snippets", "de cac can snippets", "den cac dan snippets", "den cac van snippets", "den cac ban 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: (((("den cac can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den cac can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den cac can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den cac can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.