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