Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc bo cong snippets" » "doc so cong snippets", "doc cao cong snippets", "doc hoc cong snippets", "doi bo cong snippets", "do bo cong snippets", "hoc bo cong 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: (((("doc bo cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc bo cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc bo cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc bo cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.