Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"web khoa dan snippets" » "ke khoa dan snippets", "te khoa dan snippets", "ve khoa dan snippets", "web khoa dang snippets", "web hoa dan snippets", "web khoa can snippets", "web khoa dan slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("web khoa 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: (((("web khoa dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( web khoa dan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("web khoa dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.