Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duy gian voi snippets" » "dan gian voi snippets", "don gian voi snippets", "duy van voi snippets", "duy gian hoi snippets", "duy gian ve snippets", "duy dien voi 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: (((("duy gian voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duy gian voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duy gian voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duy gian voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.