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