Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach che nom snippets" » "sach thue nom snippets", "sach nha nom snippets", "sach cap nom snippets", "sach chu nom snippets", "sach che noi 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 che nom 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 che nom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach che nom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach che nom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.