Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan pho cuc snippets" » "luan phong cuc snippets", "luan phan cuc snippets", "luan khoa cuc snippets", "luan pho cu snippets", "luan cho cuoc snippets", "luan pham cuc 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: (((("luan pho cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan pho cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan pho cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan pho cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.