Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoa doi ke snippets" » "hoa doi ke snippets", "khoa hoi ke snippets", "khoa noi ke snippets", "khoa do ke snippets", "khoa moi ke snippets", "khoa doi de 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: (((("python using java snippets") or ("khoa doi ke snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("khoa doi ke snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( khoa doi ke snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("khoa doi ke snippets"))) or ("locating bug code snippets"))*.