Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi hay cac snippets" » "phi xay cac snippets", "phi ha cac snippets", "nghi hay cac snippets", "phi tay cac snippets", "phi vay cac snippets", "phi phan cac 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 hay cac 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 hay cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi hay cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi hay cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.