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