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