Perhaps you should try some spelling variations:
"dang java java snippets" » "dang va java snippets"
"duong van code slippers" » "duong va code slippers", "luong va code slippers", "dang van code slippers", "duong van de slippers", "duong van hoe slippers", "duong van cong slippers"
"locating bug code snippets" » "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: (((("dang java java snippets") or ("duong van code slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang java java snippets") OR ("duong van code slippers"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( dang java java snippets ) or ( duong van code slippers ))) or ( locating bug code snippets ))*.