Perhaps you should try some spelling variations:
"toc phi cong snippets" » "toc phi code snippets", "toc thi cong snippets", "toc phan cong snippets", "toc pham cong snippets", "toc phu cong snippets", "hoc phi cong snippets", "tac phi cong snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("toc phi cong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("toc phi cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( toc phi cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("toc phi cong snippets"))) or ("locating bug core snippets"))*.