Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"yan su can snippets" » "dan su can snippets", "van su can snippets", "ban su can snippets", "yan su van snippets", "yan su cao snippets", "yan su han 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: (((("yan su can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("yan su can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( yan su can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("yan su can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.