Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan ve ho snippets" » "phan le ho snippets", "phan va ho snippets", "pha ve ho snippets", "phan ve hop snippets", "phan ve cho snippets", "phan ve hoa 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: (((("phan ve ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan ve ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan ve ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan ve ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.