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