Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan tung do snippets" » "phan ung do snippets", "phan cung do snippets", "phan hung do snippets", "phan trung do snippets", "phan tung ho snippets", "phan dung do 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 tung do 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 tung do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan tung do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan tung do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.