Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi te de snippets" » "khoi de de snippets", "khoi he de snippets", "choi tre de snippets", "khoi e de snippets", "khoi te du 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 te de 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 te de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi te de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi te de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.