Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha cong hon snippets" » "phan cong hon snippets", "pham cong hon snippets", "phap cong hon snippets", "pha cong hoan snippets", "pha cong hoa snippets", "pha cong lon 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: (((("pha cong hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha cong hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha cong hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha cong hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.