Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi su voi snippets" » "khoi sua voi snippets", "khoi su vi snippets", "khoi so voi snippets", "khoa su voi snippets", "hoi su voi snippets", "thoi su 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: (((("khoi su 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: (((("khoi su voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi su voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi su voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.