Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"toc duc dan snippets" » "ton duc dan snippets", "hoc duc dan snippets", "hoc duoc dan snippets", "toc duoc dan snippets", "toc duc tan snippets", "toc duc dai snippets", "toc duc 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: "((((\"toc duc dan snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( toc duc dan snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("toc duc dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.