Perhaps you should try some spelling variations:
"dung mot code snippets" » "dung mo code snippets", "dung co code snippets", "dung dat code snippets", "dung mot co snippets", "dung mot cong snippets", "dung mot con snippets", "dung mot 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"

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 mot 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 mot code snippets") OR ("dong vat code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung mot code snippets ) or ( dong vat code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung mot code snippets") or ("dong vat code snippets"))) or ("locating bug code snippets"))*.