Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chan doan ke snippets" » "chan toan ke snippets", "chan dan ke snippets", "chan doanh ket snippets", "phan doan ke snippets", "can doan ke snippets", "nhan doan ke 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: (((("chan doan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chan doan ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chan doan ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chan doan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.