Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua doi hoi snippets" » "quan doi hoi snippets", "qua loi hoi snippets", "sua doi hoi snippets", "qua doi thoi snippets", "qua doi voi snippets", "qua doi moi 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: (((("qua doi hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("qua doi hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua doi hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua doi hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.