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