Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong may cu snippets" » "cong xay cu snippets", "cong ma cu snippets", "cong hay cu snippets", "cong may tu snippets", "cong may cd 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 may cu 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 may cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong may cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong may cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.