Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"goc nhan dan snippets" » "ngoc nhan dan snippets", "goc nhin dan snippets", "hoc nhan dan snippets", "goc phan dau snippets", "goc gian dan snippets", "goc nhan tai snippets", "goc nhan dan slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("goc nhan dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("goc nhan dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( goc nhan dan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("goc nhan dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.