Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hao van toc snippets" » "hao van code snippets", "dao van toc snippets", "ho van toc snippets", "cao van toc snippets", "hao van hoc snippets", "hao dan toc snippets", "hao van toi snippets"
"python using java snippets" » "python using data 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: "((((\"hao van toc snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( hao van toc snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hao van toc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.