Perhaps you should try some spelling variations:
"viet thong va snippets" » "vien thong va snippets", "viet huong va snippets", "viet trung va snippets", "viet thong cua snippets", "viet truong va snippets", "viet thong qua snippets", "viet thong va 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 thong va 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 thong va snippets") OR ("using real java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viet thong va snippets ) or ( using real java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viet thong va snippets") or ("using real java snippets"))) or ("locating bug code snippets"))*.