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