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