Perhaps you should try some spelling variations:
"dung heei code snippets" » "dung he code snippets", "dung hai code snippets", "dung hieu code snippets", "dung heei code slippers"
"dong vat code snippets" » "dong va code snippets", "dong von code snippets", "dong ha code snippets", "dong rate code snippets", "dong vat co snippets", "dong vat de snippets", "dong vat code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung heei code snippets") or ("dong vat code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung heei code snippets") OR ("dong vat code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung heei code snippets ) or ( dong vat code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung heei code snippets") or ("dong vat code snippets"))) or ("locating bug code snippets"))*.