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