Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan hong do snippets" » "phan cong do snippets", "pham hong do snippets", "phan song do snippets", "phan khong do snippets", "phan thong do snippets", "phan dong do 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 hong do 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 hong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan hong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan hong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.