Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lenh canh so snippets" » "lenh hanh so snippets", "lenh thanh so snippets", "ben canh so snippets", "lenh anh so snippets", "lenh chinh so snippets", "lenh canh sat 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: (((("lenh canh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lenh canh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lenh canh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lenh canh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.