Perhaps you should try some spelling variations:
"dung trung wei snippets" » "dung trong wei snippets", "quang trung wei snippets", "truong trung wei snippets", "dung trang web snippets", "dung trung dai snippets", "dung trung tri snippets", "dung trung wei 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 trung wei 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 trung wei snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung trung wei snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung trung wei snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.