Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan ma cac snippets" » "nhan mac cac snippets", "nhan va cac snippets", "nhan my cac snippets", "nhan ca cac snippets", "nhan ma dac 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: (((("nhan ma 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: (((("nhan ma cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan ma cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan ma cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.