Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua kho doan snippets" » "qua khu doan snippets", "qua cho doanh snippets", "qua tho dan snippets", "qua khoa doan snippets", "quan khu doan snippets", "sua khoa doan 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 kho doan 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 kho doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua kho doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua kho doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.