Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van cho hee snippets" » "van chi hee snippets", "san cho hee snippets", "van chat hee snippets", "van choi hee snippets", "van cho he snippets", "van cho thue 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: (((("python using java snippets") or ("van cho hee snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van cho hee snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van cho hee snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van cho hee snippets"))) or ("locating bug code snippets"))*.