Perhaps you should try some spelling variations:
"dan bo cong snippets" » "dan bo code snippets", "dan so cong snippets", "dan cao cong snippets", "dan hoc cong snippets", "dan bao cong snippets", "dan bon cong snippets", "can bo 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dan bo cong snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dan bo cong snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dan bo cong snippets"))) or ("locating bug core snippets"))*.