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