Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than phan ke snippets" » "thanh phan ke snippets", "toan phan ke snippets", "thanh pham ke snippets", "than phan le snippets", "than phan ve snippets", "than phan ky 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: (((("than phan 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: (((("than phan ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than phan ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than phan ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.