Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc kiem do snippets" » "phuc liem do snippets", "thuoc kiem do snippets", "phan kiem do snippets", "phuc kiem mon snippets", "phuc kiem mot snippets", "phuc kien doi 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: (((("phuc kiem 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: (((("phuc kiem do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc kiem do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc kiem do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.