Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc cua dan slippers" » "hoc cua dan slippers", "tac cua dan slippers", "doc cua dan slippers", "toc cua dang slippers", "toc cua ban slippers", "toc ca dan slippers", "toc cua dan slippery", "toc cua dan grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("toc cua dan 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 cua dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc cua dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc cua dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.