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