Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi mat can snippets" » "phi vat can snippets", "nhin mat can snippets", "phan mat can snippets", "phi bat can snippets", "phi mat dan snippets", "phi 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: (((("phi 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: (((("phi mat can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi mat can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi mat can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.