Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham nho da snippets" » "pham khoa da snippets", "pham ngoc da snippets", "pham nhat da snippets", "pham pho da snippets", "pham nho va snippets", "pham ho 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: (((("pham nho 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: (((("pham nho da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham nho da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham nho da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.