Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh doc do snippets" » "trinh do do snippets", "trinh hoa do snippets", "trinh co do snippets", "trinh doc dao snippets", "trinh duoc do snippets", "trinh hoc do 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 doc do 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 doc do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh doc do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh doc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.