Perhaps you should try some spelling variations:
"trinh khung va snippets" » "trinh nhung va snippets", "trinh phuong va snippets", "trinh dung va snippets", "trinh phung van snippets", "trinh thuong va snippets", "trinh nhung van snippets", "trinh khung 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: (((("trinh khung 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: (((("trinh khung va snippets") OR ("using real java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh khung va snippets ) or ( using real java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh khung va snippets") or ("using real java snippets"))) or ("locating bug code snippets"))*.