Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using java can snippets" » "using java code snippets", "using data can snippets"
"phan cong cac snippets" » "phan cong code snippets", "thanh cong cac snippets", "phan cuong cac snippets", "phan cong tac snippets", "phan cong cau 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 can snippets") or ("phan cong cac snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java can snippets") OR ("phan cong cac snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java can snippets ) or ( phan cong cac snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java can snippets") or ("phan cong cac snippets"))) or ("locating bug core snippets"))*.