Perhaps you should try some spelling variations:
"python using code snippets" » "python using cfd snippets", "python using one snippets", "python using code slippers"
"tra trinh ky snippets" » "qua trinh ky snippets", "tra trinh ky slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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