Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang cac noi snippets" » "hang ca noi snippets", "hang cau noi snippets", "bang cac noi snippets", "hang cach noi snippets", "hang cac toi 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 cac noi 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 cac noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang cac noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang cac noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.