Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java slippers" » "python using data slippers", "python using java grippers"
"do van va slippery" » "dao van va slippery", "vo van va slippery", "so van va slippery", "do van vat slippery", "do van van slippery", "do ban va slippery"

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: "((((\"do van va slippery\") OR (\"python using java slippers\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( do van va slippery ) OR ( python using java slippers ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("do van va slippery") OR ("python using java slippers"))) OR ("locating bugs code snippets"))*.