Perhaps you should try some spelling variations:
"dung ca chua snippets" » "dung ca code snippets", "dung cua chua snippets", "dung cac chua snippets", "dung cam chua snippets", "dung ca cua snippets", "dung sua chua 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 ca chua 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 ca chua snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dung ca chua snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dung ca chua snippets"))) or ("locating bug core snippets"))*.