Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khau toan do snippets" » "khanh toan do snippets", "khau tai do snippets", "khau luan do snippets", "khau toan ho snippets", "khau toan co snippets", "khau toan du 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: (((("khau toan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khau toan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khau toan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khau toan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.