Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tu hach so snippets" » "tu cach so snippets", "tu hanh so snippets", "tu sach so snippets", "tu mach so snippets", "tu hoach su snippets", "tu hoach 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: (((("tu hach 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: (((("tu hach so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tu hach so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu hach so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.