Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java slippers" » "python using data slippers", "python using java slippery", "python using java grippers"
"nhan co van snippets" » "nhan con van snippets", "phan co van snippets", "nhan mo van snippets", "nhan cao van snippets", "nhan vo van snippets", "nhan so van 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 slippers\") OR (\"nhan co van snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java slippers ) OR ( nhan co van snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java slippers") OR ("nhan co van snippets"))) OR ("locating bug core snippets"))*.