Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh ke hoi snippets" » "trinh ky hoi snippets", "trinh he hoi snippets", "trinh ve hoi snippets", "trinh ke khoi snippets", "trinh le hoi snippets", "trinh me hoi 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 ke hoi 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 ke hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh ke hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh ke hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.