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