Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan cong la slippers" » "thanh cong la slippers", "phan cong lap slippers", "phan cong lai slippers", "phan cong ha slippers", "phan cong la slippery", "phan cong la grippers"
"locating bug code snippets" » "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 cong la slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan cong la slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan cong la slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan cong la slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.