Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using real java snippets" » "using metal java snippets", "using raw java snippets"
"van trinh java slippers" » "van thinh java slippers", "van tinh java slippers", "dan trinh java slippers", "van trinh java slippery", "van trinh java grippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using real java snippets") OR ("van trinh java slippers"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using real java snippets\") OR (\"van trinh java slippers\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( using real java snippets ) OR ( van trinh java slippers ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using real java snippets") OR ("van trinh java slippers"))) OR ("locating bug core snippets"))*.