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