Perhaps you should try some spelling variations:
"cao anh cong snippets" » "cao anh code snippets", "cao hanh cong snippets", "cao anh dong snippets", "cao thanh cong snippets", "cao dang cong snippets", "cao tang cong snippets", "cao bang 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 ("cao anh 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 ("cao anh cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cao anh cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cao anh cong snippets"))) or ("locating bug core snippets"))*.