Perhaps you should try some spelling variations:
"toc cao chap snippets" » "toc cao code snippets", "toc cao chat snippets", "toc cao cap snippets", "toc cau chap snippets", "hoc cao chap snippets", "toc dao chap snippets", "toc co chap snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data 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: (((("python using java snippets") or ("toc cao chap 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 cao chap snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( toc cao chap snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("toc cao chap snippets"))) or ("locating bug core snippets"))*.