Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc ngu coc snippets" » "hoc nga coc snippets", "hoc nguoi coc snippets", "hoc nghe coc snippets", "hoc ngu hoc snippets", "hoc ngu cac snippets", "hoc ngu co 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: (((("hoc ngu coc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc ngu coc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc ngu coc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc ngu coc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.