Perhaps you should try some spelling variations:
"dung cu hoan snippets" » "dung cu code snippets", "dung cua hoan snippets", "dung co hoan snippets", "dung cho hoan snippets", "dung cuu hoan snippets", "dung su hoan snippets", "dung vu hoan 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 ("dung cu 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 ("dung cu hoan snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dung cu hoan snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dung cu hoan snippets"))) or ("locating bug core snippets"))*.