Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nham hoan te snippets" » "pham hoang te snippets", "phap hoan te snippets", "nham hoan thue snippets", "nham hoang de snippets", "nham 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: (((("nham 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: (((("nham hoan te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nham hoan te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nham hoan te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.