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