Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam doi dan slippers" » "nam hoi dan slippers", "nam do dan slippers", "nam noi dan slippers", "nam doi ban slippers", "nam doi dau slippers", "nam doi dan slippery", "nam doi dan 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: (((("nam doi dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam doi dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam doi dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam doi dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.