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