Perhaps you should try some spelling variations:
"dai duong va snippets" » "dai cuong va snippets", "hai duong va snippets", "dai luong va snippets", "dai duong van snippets", "dai dung va snippets", "dai duong va slippers"
"using low java snippets" » "using low java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dai duong va snippets") or ("using low java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai duong va snippets") OR ("using low java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( dai duong va snippets ) or ( using low java snippets ))) or ( locating bug code snippets ))*.