Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc minh hoa snippets" » "duc minh hoa snippets", "do minh hoa snippets", "doc tinh hoa snippets", "doc minh hoang snippets", "doc trinh hoa snippets", "doc sinh hoat 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: (((("doc minh hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc minh hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc minh hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc minh hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.