Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi do sach slippers" » "phi doc sach slippers", "phi do sanh slippers", "phi bo sach slippers", "phi doi sach slippers", "phi do sach slippery", "phi do sach 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 do sach 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 do sach slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi do sach slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi do sach slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.