Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hap cua dan snippets" » "hai cua dan snippets", "tap cua dan snippets", "ap cua dan snippets", "hap cua dang snippets", "hap cua ban snippets", "hap ca dan snippets", "hap cua 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"hap cua dan snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( hap cua dan snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hap cua dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.