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