Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham nang te snippets" » "phap nang te snippets", "nham nang te snippets", "pham hang te snippets", "pham nang tu snippets", "pham nang he snippets", "pham nang ty 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 nang te 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 nang te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham nang te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham nang te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.