Perhaps you should try some spelling variations:
"tap toan code snippets" » "tap toan co snippets", "tap toan cong snippets", "tap toan de snippets", "tap doan code snippets", "tap quan code snippets", "bai toan code snippets", "tap toan code slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

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

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