Perhaps you should try some spelling variations:
"vang trong code snippets" » "lang trong code snippets", "vung trong code snippets", "mang trong code snippets", "vang trong cong snippets", "vang trong co snippets", "vang trong che snippets"
"locating bug core snippets" » "locating bug code snippets"
"using a java snippets" » "using _ java 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 a java snippets") OR ("vang trong code snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using a java snippets\") OR (\"vang trong code snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( using a java snippets ) OR ( vang trong code snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a java snippets") OR ("vang trong code snippets"))) OR ("locating bug core snippets"))*.