Perhaps you should try some spelling variations:
"tac danh trinh snippets" » "tac hanh trinh snippets", "tac anh trinh snippets", "tac dan trinh snippets", "sach danh trinh snippets", "cac doanh trinh snippets", "cac dan trinh snippets", "tac danh trinh slippers"
"using java java snippets" » "using data java snippets", "using java 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: (((("tac danh trinh snippets") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tac danh trinh snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac danh trinh snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac danh trinh snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.