Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach mau he snippets" » "sach dau he snippets", "sach dao he snippets", "bach mai he snippets", "sach mau de snippets", "sach mau ho 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 mau 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 mau he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach mau he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach mau he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.