Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan phong da snippets" » "dan phuong da snippets", "van phong da snippets", "dai phong da snippets", "dan phong va snippets", "dan phong xa snippets", "dan phong la 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: (((("dan phong 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: (((("dan phong da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan phong da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan phong da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.