Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang di cac snippets" » "hang doi cac snippets", "hang vi cac snippets", "hang dien cac snippets", "hang do cac snippets", "hang li cac snippets", "hang de cac 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: (((("hang di cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang di cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang di cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang di cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.