Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong cung cac snippets" » "dong cung code snippets", "dong chung cac snippets", "dong hung cac snippets", "dong cong cac snippets", "dong cuong cac snippets", "dong cung cap snippets", "dong dung cac snippets"
"dung java java snippets" » "dung va java snippets"

Try widening your search to All Fields.

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

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