Perhaps you should try some spelling variations:
"chu cao cong snippets" » "chu cao code snippets", "chu cac cong snippets", "chu cao dang snippets", "chu cua cong snippets", "cu cao cong snippets", "chu cai cong snippets", "cho cao 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 ("chu cao 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 ("chu cao cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( chu cao cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("chu cao cong snippets"))) or ("locating bug core snippets"))*.