Perhaps you should try some spelling variations:
"qua cau dong snippets" » "qua cau code snippets", "qua cau duong snippets", "qua cau cong snippets", "qua cao dong snippets", "quan cau dong snippets", "qua cac dong snippets", "qua ca dong 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 ("qua cau dong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("qua cau dong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( qua cau dong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("qua cau dong snippets"))) or ("locating bug core snippets"))*.