Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bon nam doi snippets" » "bo nam doi snippets", "ban nam doi snippets", "son nam doi snippets", "bon nam hoi snippets", "bon nam do snippets", "bon 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: (((("bon 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: (((("bon nam doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bon nam doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bon nam doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.