Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham hung do snippets" » "pham hong do snippets", "pham hang do snippets", "phan hung do snippets", "pham hung dao snippets", "pham chung do snippets", "pham dung do 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: (((("pham hung 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: (((("pham hung do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham hung do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham hung do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.