Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den nam long snippets" » "den nam dong snippets", "den nam lang snippets", "den nam trong snippets", "dan nam long snippets", "det nam long snippets", "den cam long 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 nam long 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 nam long snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den nam long snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den nam long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.