Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan cuu cac snippets" » "phan cau cac snippets", "phan huu cac snippets", "phan cung cac snippets", "phan cua cac snippets", "phan cuu dac snippets"
"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 cuu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan cuu cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan cuu cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan cuu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.