Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van bot cong snippets" » "van bo cong snippets", "van mot cong snippets", "van bat cong snippets", "van bon cong snippets", "van hoat cong snippets", "dang bot 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: (((("van bot 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: (((("van bot cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van bot cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van bot cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.