Perhaps you should try some spelling variations:
"dung ngoc trong snippets" » "dung nuoc trong snippets", "dung goc trong snippets", "dung ngo trong snippets", "duong ngoc trong snippets", "dang ngoc trong snippets", "dung ngoc trong slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("dung ngoc trong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ngoc trong snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ngoc trong snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ngoc trong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.