Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan cuu cua snippets" » "phan cau cua snippets", "phan huu cua snippets", "phan cung cua snippets", "phan cu cua snippets", "phan chu cua 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 cua 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 cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan cuu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan cuu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.