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"
"dung nhan cac snippets" » "dung nhan code snippets", "dung luan cac snippets", "dung nhan cach snippets", "dung phan cac snippets", "dung nhan mac 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 ("dung nhan 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 ("dung nhan cac snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java can snippets ) or ( dung nhan cac snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java can snippets") or ("dung nhan cac snippets"))) or ("locating bug core snippets"))*.