Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan phan le snippets" » "than phan le snippets", "nhan chan le snippets", "phan phan le snippets", "nhan pham le snippets", "nhan phan mem snippets", "nhan phan lap 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: (((("nhan phan le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan phan le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan phan le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan phan le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.