Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh duc so snippets" » "tinh duc so snippets", "trinh doc so snippets", "trinh dung so snippets", "trinh duc mo snippets", "trinh duc sy 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: (((("trinh duc so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh duc so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh duc so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh duc so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.