Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan lan ong snippets" » "phan lap ong snippets", "phan van ong snippets", "phan loai ong snippets", "phan lan song snippets", "phan dan ong snippets", "phan lan huong 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 lan ong 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 lan ong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan lan ong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan lan ong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.