Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dac he noi snippets" » "cac he noi snippets", "dan he noi snippets", "dac ha noi snippets", "dac he moi snippets", "dac ghep noi 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: (((("dac he 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: (((("dac he noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dac he noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dac he noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.