Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc hieu n3 slippers" » "toc thieu n3 slippers", "doc hieu n3 slippers", "hoc thieu n3 slippers", "toc hieu n3 slippery", "toc hieu n3 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: (((("toc hieu n3 slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc hieu n3 slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc hieu n3 slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc hieu n3 slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.