Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den tay cao snippets" » "dan tay cao snippets", "den gay cao snippets", "den lay cao snippets", "den tao cao snippets", "den tay co snippets", "den toan cao 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 tay cao 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 tay cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den tay cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den tay cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.