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