Perhaps you should try some spelling variations:
"duoc bien dat snippets" » "duoc dien dat snippets", "duc bien dat snippets", "duoc thien dat snippets", "duoc bien dai snippets", "duoc bien dao snippets", "duoc bieu dat snippets", "duoc bien dat slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("duoc bien dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc bien dat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc bien dat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc bien dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.