Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc doi ke snippets" » "thuat doi ke snippets", "thuc dan ke snippets", "thay doi ke snippets", "thuc do ke snippets", "thuc moi ke snippets", "thuc 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: (((("thuc doi 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: (((("thuc doi ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc doi ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc doi ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.