Perhaps you should try some spelling variations:
"hau den cong snippets" » "hau den code snippets", "hau dien cong snippets", "hau den dong snippets", "hau len cong snippets", "cau den cong snippets", "thau dien cong snippets", "thai den cong 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 ("hau den 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 ("hau den cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( hau den cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("hau den cong snippets"))) or ("locating bug core snippets"))*.