Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tu nhieu cao snippets" » "tu nhieu code snippets", "tu chieu cao snippets", "tu nhieu cau snippets", "tu hieu cac snippets", "tu nhien cao snippets", "phu nhieu cao snippets", "tu lieu cao snippets"
"python using java snippets" » "python using data 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: (((("tu nhieu cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tu nhieu cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tu nhieu cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu nhieu cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.