Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi phan hoa snippets" » "chi phan hoa snippets", "khi nhan hoa snippets", "phi phan hoa snippets", "khi phan loai snippets", "khi khanh hoa snippets", "khi phan phoi 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: (((("khi phan hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi phan hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi phan hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi phan hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.