Perhaps you should try some spelling variations:
"dang cong code snippets" » "dung cong code snippets", "dang cong cong snippets", "dang cong co snippets", "dang cong che snippets", "dang cong code slippers"
"van hung java snippets" » "van dung java snippets", "manh hung java snippets", "van duong java snippets", "van hung java 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: (((("van hung java snippets") or ("dang cong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van hung java snippets") OR ("dang cong code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van hung java snippets ) or ( dang cong code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hung java snippets") or ("dang cong code snippets"))) or ("locating bug code snippets"))*.