Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"che hoi dan snippets" » "che ho dan snippets", "che noi dan snippets", "che khoa dan snippets", "che hoa dan snippets", "che hoc dan snippets", "che hoi dap snippets", "che hoi 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: (((("che hoi 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: (((("che hoi dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che hoi dan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che hoi dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.