Perhaps you should try some spelling variations:
"dung cac chat snippets" » "dung cac code snippets", "luong cac chat snippets", "dung cho chat snippets", "dung tai chat snippets", "dung cao chat snippets", "dung cac thuat snippets", "dung cac nha snippets"
"locating bug core snippets" » "locating bug code snippets"
"dang trinh java snippets" » "dang tinh java snippets", "dan trinh java snippets", "dong trinh 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: (((("dang trinh java snippets") or ("dung cac chat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang trinh java snippets") OR ("dung cac chat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dang trinh java snippets ) or ( dung cac chat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang trinh java snippets") or ("dung cac chat snippets"))) or ("locating bug core snippets"))*.