Perhaps you should try some spelling variations:
"phan coc dat snippets" » "phan cac dat snippets", "phan co dat snippets", "phap coc dat snippets", "phan hoc dat snippets", "phan chon dat snippets", "phan duoc dat snippets", "phan coc dat 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", "locating bug core 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: (((("phan coc dat snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan coc dat snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan coc dat snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan coc dat snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.