Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh so cuu snippets" » "trinh do cuu snippets", "trinh co cuu snippets", "trinh su cuu snippets", "trinh so huu snippets", "trinh ho cuu snippets", "trinh so cau 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 so cuu 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 so cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh so cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh so cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.