Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong cuong cac snippets" » "dong cuong code snippets", "dong duong cac snippets", "dong huong cac snippets", "dang cuong cac snippets", "dong luong cac snippets", "dong cong cac snippets", "dong trong 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 cuong 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 cuong cac snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong cuong cac snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cuong cac snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.