Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua danh noi snippets" » "qua dan noi snippets", "luan danh noi snippets", "luat danh noi snippets", "qua hanh noi snippets", "qua anh noi snippets", "qua dang 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 danh 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: (((("qua danh noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua danh noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua danh noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.