Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doanh co du snippets" » "doanh cua du snippets", "doanh va du snippets", "anh co du snippets", "doanh cho du snippets", "doanh co dau snippets", "doanh so du 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: (((("doanh co du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doanh co du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doanh co du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doanh co du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.