Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den cac cuu snippets" » "dien cac cuu snippets", "dan cac cuu snippets", "de cac cuu snippets", "den cap cuu snippets", "den cac cau snippets", "den cac chu 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 cuu 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 cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den cac cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den cac cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.