Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi song cuu snippets" » "phi cong cuu snippets", "thi song cuu snippets", "phan song cuu snippets", "phi song cua snippets", "phi song ngu snippets", "phi cong cu 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 song cuu 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 song cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi song cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi song cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.