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