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