Perhaps you should try some spelling variations:
"cau dong chen snippets" » "cau dong code snippets", "cau dong chan snippets", "cau dong che snippets", "cau dong chuyen snippets", "cau duong chen snippets", "cau cong chen snippets", "cao dong 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 dong 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 dong chen snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java java snippets ) or ( cau dong chen snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") or ("cau dong chen snippets"))) or ("locating bug core snippets"))*.