Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau cao hoat snippets" » "dau co hoat snippets", "dau cao chat snippets", "dau dan hoat snippets", "dau cay hoat snippets", "dam cao hoat 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: (((("dau cao hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau cao hoat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau cao hoat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau cao hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.