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"
"cong ti cua snippets" » "cong ty cua snippets", "cong li cua snippets", "cong tu cua snippets", "cong tri cua snippets", "cong thi cua snippets", "cong tai cua snippets"

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

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