Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van giua cac snippets" » "van gia cac snippets", "ban giua cac snippets", "quan giua cac snippets", "van giua cau snippets", "van cua cac snippets", "van gian cac 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 giua cac 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 giua cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van giua cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van giua cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.