Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong cac cao snippets" » "cong cac cao snippets", "dong cac cao snippets", "mong cai cao snippets", "mong cac co snippets", "mong ca cao snippets", "mong bac cao 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 cac cao 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 cac cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong cac cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong cac cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.