Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan qua cu snippets" » "phan quan cu snippets", "phan dua cu snippets", "phan quang cu snippets", "phan qua cua snippets", "phan qua su snippets", "phan qua ca 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 qua cu 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 qua cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan qua cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan qua cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.