Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low java snippets"
"hai long van snippets" » "hai phong van snippets", "hai duong van snippets", "hai luong van snippets", "hai song van snippets", "hai lang van snippets"

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

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