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