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