Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan khoe moi snippets" » "dan khoa moi snippets", "dang khoi moi snippets", "dang khoa moi snippets", "dan hoc moi snippets", "dan cho moi 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: (((("dan khoe moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan khoe moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan khoe moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan khoe moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.