Perhaps you should try some spelling variations:
"python using code snippets" » "python using cfd snippets", "python using one snippets"
"locating bug core snippets" » "locating bug code snippets"
"hoc tu cong snippets" » "hoc thu cong snippets", "hoc te cong snippets", "hoc tai cong snippets", "hoc thuc cong 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 tu cong snippets") OR ("python using code snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( hoc tu cong snippets ) or ( python using code snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hoc tu cong snippets") or ("python using code snippets"))) or ("locating bug core snippets"))*.