Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang cu cua snippets" » "dang su cua snippets", "dung cu cua snippets", "dan cu cua snippets", "dang cau cua snippets", "dang ca cua snippets", "dang co 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: (((("dang cu 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: (((("dang cu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang cu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang cu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.