Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham hoan te snippets" » "pham hoang te snippets", "phap hoan te snippets", "nham hoan te snippets", "pham hoan thue snippets", "pham hoang de snippets", "pham hoang tu 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: (((("pham hoan te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham hoan te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham hoan te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham hoan te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.