Perhaps you should try some spelling variations:
"dung co code snippets" » "dung cho code snippets", "dung cong code snippets", "dung cua code snippets", "dung cfd code snippets", "dung co code slippers"
"dong da data snippets" » "dong dat data snippets", "dong dao data snippets", "dong ha data snippets", "dong a data snippets", "dong da data 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 co code snippets") or ("dong da data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung co code snippets") OR ("dong da data snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung co code snippets ) or ( dong da data snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung co code snippets") or ("dong da data snippets"))) or ("locating bug code snippets"))*.