Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tre tinh da snippets" » "tru tinh da snippets", "tue tinh da snippets", "tri tinh da snippets", "tre tinh va snippets", "tre tinh gia snippets", "tre tinh lao 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: (((("tre tinh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tre tinh da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tre tinh da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tre tinh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.