Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap han te snippets" » "phap hoan te snippets", "phap phan te snippets", "phap nang te snippets", "phap han tu snippets", "phap van te snippets", "phap han tieu 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: (((("phap han 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: (((("phap han te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap han te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap han te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.