Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach han ho snippets" » "sach tham ho snippets", "sach danh ho snippets", "sach nang ho snippets", "sach han cho snippets", "sach can ho snippets", "sach hen 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 han ho 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 han ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach han ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach han ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.