Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan cuu da snippets" » "quan cua da snippets", "quan cau da snippets", "quan chu da snippets", "quan cuu dac snippets", "quan cuu dao snippets", "quan cuu va 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: (((("quan cuu da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan cuu da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan cuu da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan cuu da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.