Perhaps you should try some spelling variations:
"dung khan ap snippets" » "dung khang ap snippets", "dung nhan ap snippets", "dung phan ap snippets", "dung khan cap snippets", "dung han ap snippets", "dung khan dam snippets", "dung khan ap 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 khan ap 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 khan ap snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung khan ap snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung khan ap snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.