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