Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung cua do8 snippets" » "dung luan do8 snippets", "dung cho do8 snippets", "dung cua dong snippets", "dung cua duoc 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 cua do8 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 cua do8 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cua do8 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cua do8 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.