Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho cong cao snippets" » "cao cong cao snippets", "cua cong cao snippets", "cac cong cao snippets", "cho cong cau snippets", "cho cong cac snippets", "cho cong co 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 cao 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 cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho cong cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho cong cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.