Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoa toan do snippets" » "hoa tan do snippets", "hop toan do snippets", "hoa than do snippets", "hoa toan ho snippets", "hoa toan co snippets", "hoa toan du snippets"
"locating bug code snippets" » "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.

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