Perhaps you should try some spelling variations:
"python using java slippers" » "python using data slippers", "python using java slippery", "python using java grippers"
"vu thi ban snippets" » "vu thi lan snippets", "vu tai ban snippets", "vu tri ban snippets", "su thi ban snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: "((((\"vu thi ban snippets\") OR (\"python using java slippers\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( vu thi ban snippets ) OR ( python using java slippers ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vu thi ban snippets") OR ("python using java slippers"))) OR ("locating bug code snippets"))*.