Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc pham ca snippets" » "duoc pham ca snippets", "duc phan ca snippets", "duc phap ca snippets", "duc pham can snippets", "duc pham ma snippets", "duc pham va 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: (((("duc pham ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc pham ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc pham ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc pham ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.