Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan co choi snippets" » "phan bo choi snippets", "phan cong choi snippets", "phan cac choi snippets", "phan co hoi snippets", "phan co khoi snippets", "phan do choi 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 co choi 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 co choi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan co choi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan co choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.