Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong hoan cad snippets" » "cong hoan code snippets", "cong hoa cad snippets", "dong hoa cad snippets", "cong san cad snippets", "cong hoang cao snippets", "cong khoan cam snippets", "cong toan cao 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: (((("cong hoan cad snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong hoan cad snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong hoan cad snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong hoan cad snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.