Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh tu bot snippets" » "anh tu bot snippets", "hanh tu bot snippets", "doanh thu bot snippets", "danh tu bat snippets", "danh tu bo snippets", "danh tu cot 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: (((("danh tu bot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh tu bot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh tu bot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh tu bot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.