Perhaps you should try some spelling variations:
"hoc bo cong snippets" » "hoc bo code snippets", "hoc so cong snippets", "hoc cao cong snippets", "hoc hoc cong snippets", "hoc co 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 ("hoc bo cong snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( hoc bo cong snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("hoc bo cong snippets"))) or ("locating bug core snippets"))*.