Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang duc doc snippets" » "dang quoc doc snippets", "dao duc doc snippets", "dang su doc snippets", "dang duc hoc snippets", "dang duy doc snippets", "dang duc ngoc 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: (((("dang duc doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang duc doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang duc doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang duc doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.