Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoe ben chi snippets" » "khoe ban chi snippets", "khoe men chi snippets", "khoa benh chi snippets", "khoe banh chi snippets", "khoe benh cho 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: (((("khoe ben chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoe ben chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoe ben chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoe ben chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.