Perhaps you should try some spelling variations:
"doi va hoat snippets" » "doi va code snippets", "doi va hoa snippets", "doi qua hoat snippets", "doi dan hoat snippets", "hoi va hoat snippets", "noi va hoat snippets", "dai va hoat snippets"
"locating bug core snippets" » "locating bug code 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: "((((\"python using java snippets\") OR (\"doi va hoat snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( doi va hoat snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("doi va hoat snippets"))) OR ("locating bug core snippets"))*.