Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"vi sinh hoc snippets" » "vi sinh code snippets", "vi dinh hoc snippets", "vi minh hoc snippets", "vi kinh hoc snippets"
"missing java java snippets" » "missing data java snippets", "using java 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: (((("vi sinh hoc snippets") OR ("missing java java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"vi sinh hoc snippets\") OR (\"missing java java snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( vi sinh hoc snippets ) OR ( missing java java snippets ))) OR ( locating bug core snippets ))*.