Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua cua nom snippets" » "quan cua nom snippets", "quang cua nom snippets", "qua quan nom snippets", "qua cua nam snippets", "qua cua nuoc snippets", "qua chua 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: (((("qua cua nom 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 cua nom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua cua nom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua cua nom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.