Perhaps you should try some spelling variations:
"cau cong chen snippets" » "cau cong code snippets", "cau cong chien snippets", "cau cong che snippets", "cau dong chen snippets", "cac cong chen snippets", "cuu cong chen snippets", "cao cong chen snippets"
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"

You may be able to get more results by adjusting your search query.

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