Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dac nhan che snippets" » "cac nhan che snippets", "danh nhan che snippets", "ca nhan che snippets", "dac han che snippets", "dac phan che snippets", "dac nhan nghe 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 nhan che 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 nhan che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dac nhan che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dac nhan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.