Perhaps you should try some spelling variations:
"viet trong dao snippets" » "viet trung dao snippets", "viet thong dao snippets", "viet huong dao snippets", "viet truong dao snippets", "viet trong dam snippets", "viet trong dan snippets", "viet trong dao slippers"
"using real java snippets" » "using metal java snippets", "using raw java snippets", "using real 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: (((("viet trong dao snippets") or ("using real java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("viet trong dao snippets") OR ("using real java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viet trong dao snippets ) or ( using real java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viet trong dao snippets") or ("using real java snippets"))) or ("locating bug code snippets"))*.