Perhaps you should try some spelling variations:
"toc su hoan snippets" » "toc su code snippets", "toc su han snippets", "toc vu hoan snippets", "toc thu hoan snippets", "hoc su hoan snippets", "toc pu hoan snippets", "tac su hoan 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 su hoan 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 su hoan snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( toc su hoan snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("toc su hoan snippets"))) or ("locating bug core snippets"))*.