Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"toc tra du snippets" » "toc ta du snippets", "toc thai du snippets", "boc tran du snippets", "toc tra tu snippets", "toc tran duc snippets", "toc tran duy 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: (((("toc tra du snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( toc tra du snippets ) or ( python using java snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("toc tra du snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))*.