Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi pham doi snippets" » "phi phan doi snippets", "phoi phan doi snippets", "vi pham doi snippets", "phi pham do snippets", "phi pham moi snippets", "phi pham voi 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 pham doi 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 pham doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi pham doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi pham doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.