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