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