Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java slippers" » "python using data slippers", "python using java slippery", "python using java grippers"
"hoc do dan snippets" » "hoc doi dan snippets", "hoc co dan snippets", "hoc bo dan snippets", "hoc do danh snippets", "hoc dao dan snippets", "hoc do dang 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: (((("hoc do dan snippets") OR ("python using java slippers"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( hoc do dan snippets ) or ( python using java slippers ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hoc do dan snippets") or ("python using java slippers"))) or ("locating bugs code snippets"))*.