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