Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi cong cac snippets" » "thi cong cac snippets", "cho cong cac snippets", "phi cong cac snippets", "chi cuong cac snippets", "chi cong tac snippets", "chi cong cau 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: (((("chi cong cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi cong cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi cong cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi cong cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.