Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat vu duc slippers" » "nhat ve duc slippers", "nhat tu duc slippers", "nhat ngu duc slippers", "nhat vu duc slippery", "nhat 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: (((("nhat 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: (((("nhat vu duc slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat vu duc slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat vu duc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.