Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh co he snippets" » "trinh do he snippets", "trinh cong he snippets", "trinh hoa he snippets", "trinh co che snippets", "trinh cho he snippets", "trinh co e 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: (((("trinh co he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh co he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh co he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh co he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.