Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach gi he snippets" » "sach giao he snippets", "sach bai he snippets", "sach doi he snippets", "sach gi de snippets", "sach gi ve snippets", "sach vi he 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: (((("sach gi 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: (((("sach gi he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach gi he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach gi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.