Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi le doan snippets" » "phi le dan snippets", "phi ly doanh snippets", "phi le hoang snippets", "thi le doan snippets", "phi ly doan 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: (((("phi le doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi le doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi le doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi le doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.