Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi pham do snippets" » "toi pham do snippets", "doi phat do snippets", "duoc pham do snippets", "doi pham doi snippets", "doi pham mo snippets", "doi 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: (((("doi 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: (((("doi pham do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi pham do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi pham do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.