Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xuat mat can snippets" » "xuat mot can snippets", "xuat mam can snippets", "xuat vat can snippets", "xuat bat can snippets", "xuat mat dan snippets", "xuat mao can 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: (((("xuat mat can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xuat mat can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xuat mat can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xuat mat can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.