Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach hoi con snippets" » "sach doi con snippets", "sach moi con snippets", "cach thoi con snippets", "sach hoi co snippets", "sach hai con snippets", "sach hoc con 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 hoi con 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 hoi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach hoi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach hoi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.