Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sat phan che snippets" » "sat nhan che snippets", "vat phan che snippets", "xuat phan che snippets", "sat han che snippets", "sat phap che snippets", "sat phan thi 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: (((("sat phan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sat phan che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sat phan che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sat phan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.