Perhaps you should try some spelling variations:
"toc do chon snippets" » "toc do code snippets", "toc do choi snippets", "toc mo chon snippets", "toc do chinh snippets", "toc dao chon snippets", "toc co chon snippets", "hoc do chon 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 do chon 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 do chon snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( toc do chon snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("toc do chon snippets"))) or ("locating bug core snippets"))*.