Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap dong do snippets" » "phan dong do snippets", "phap cong do snippets", "pham dong do snippets", "phap dong dao snippets", "phap dong co snippets", "phap dang do 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: (((("phap dong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap dong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap dong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap dong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.