Perhaps you should try some spelling variations:
"noi hoc chat snippets" » "noi hoc code snippets", "noi hoc phat snippets", "noi hoc cao snippets", "noi hoc phan snippets", "hoi hoc chat snippets", "voi hoc chat snippets", "noi khoa chat snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("noi hoc chat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("noi hoc chat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( noi hoc chat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("noi hoc chat snippets"))) or ("locating bug core snippets"))*.