Perhaps you should try some spelling variations:
"dung veea code snippets" » "dung va code snippets", "dung viet code snippets", "dung ve code snippets", "dung vaeea code snippets", "dung vieea code snippets", "dung veeea code snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung v code snippets" » "dung va code snippets", "dung vi code snippets", "dung ve code 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 v code snippets") or ("dung veea code snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung v code snippets") OR ("dung veea code snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung v code snippets ) or ( dung veea code snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung v code snippets") or ("dung veea code snippets"))) or ("locating bug core snippets"))*.