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