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