Perhaps you should try some spelling variations:
"nha dung van snippets" » "kha dung van snippets", "nha cung van snippets", "nha dong van snippets", "nha duong van snippets", "nha dung va snippets", "nha dang van snippets", "nha dung 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: (((("nha dung 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: (((("nha dung van snippets") OR ("using low java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nha dung van snippets ) or ( using low java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nha dung van snippets") or ("using low java snippets"))) or ("locating bug code snippets"))*.