Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan song ve snippets" » "phan cong ve snippets", "phan xuong ve snippets", "phan ung ve snippets", "phan song ven snippets", "phan song va snippets", "phan long ve 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 song ve 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 song ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan song ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan song ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.