Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong cong de snippets" » "cong cong de snippets", "tong cong de snippets", "dong cong de snippets", "mong cong da snippets", "mong cong ve snippets", "mong cong dieu 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: (((("mong cong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mong cong de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong cong de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong cong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.