Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung xu cau snippets" » "ung xu cau snippets", "dung cu cau snippets", "dung du cau snippets", "dung su cau snippets", "dung tu cau 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: (((("dung xu cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung xu cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung xu cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung xu cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.