Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duong cac toc snippets" » "duong cac code snippets", "luong cac toc snippets", "dung cac toc snippets", "cuong cac toc snippets", "duong cac toi snippets", "duong cac nuoc snippets", "duong cac thoi 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: (((("duong cac toc snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong cac toc snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( duong cac toc snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong cac toc snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.