Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java code snippets" » "using data code snippets"
"toan anh doc snippets" » "toan hanh doc snippets", "tuan anh doc snippets", "tran anh doc snippets", "toan anh duc snippets", "toan anh hoc snippets", "toan nang doc snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("toan anh doc snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( toan anh doc snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("toan anh doc snippets"))) or ("locating bugs code snippets"))*.