Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chen den doi snippets" » "chen wen doi snippets", "chet den doi snippets", "chen chen doi snippets", "chen den do snippets", "chen de doi snippets", "chen den coi 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: (((("chen den doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chen den doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chen den doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chen den doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.