Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan du chat snippets" » "dan du code snippets", "dan duoc chat snippets", "dan dung chat snippets", "dan doc chat snippets", "dan dau chat snippets", "danh du chat snippets", "dan su chat 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: (((("dan du chat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan du chat snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dan du chat snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan du chat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.