Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"long hat dan snippets" » "long ha dan snippets", "cong hat dan snippets", "lang hat dan snippets", "long hat van snippets", "long mat dan snippets", "long nhat danh snippets", "long hat dan slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("long hat dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("long hat dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long hat dan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long hat dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.