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