Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ho duc code snippets" » "ho duc cong snippets", "ho duc con snippets", "ho bug code snippets", "hoc duc code snippets", "do duc code snippets", "hong duc code snippets"
"locating bug core snippets" » "locating bug code 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: "((((\"ho duc code snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( ho duc code snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("ho duc code snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.