Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau doc cuoc snippets" » "dau doi cuoc snippets", "dau dao cuoc snippets", "dat doc cuoc snippets", "dau do cuoc snippets", "day doc cuoc 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 doc cuoc 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 doc cuoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau doc cuoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau doc cuoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.