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