Perhaps you should try some spelling variations:
"toc mot cong snippets" » "toc mot code snippets", "toc moi cong snippets", "toc hoc cong snippets", "toc bo cong snippets", "hoc mot cong snippets", "toc mo cong snippets", "tuc mot cong 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 mot 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 mot cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( toc mot cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("toc mot cong snippets"))) or ("locating bug core snippets"))*.