Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi luc nhat slippers" » "phi luan nhat slippers", "phi luc nhan slippers", "phi luc nhat slippery", "phi luc nhat grippers"
"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 luc nhat slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi luc nhat slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi luc nhat slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi luc nhat slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.