Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using metal java snippets" » "using real java snippets", "nursing mental java snippets", "using medical java snippets"
"vi trung va snippets" » "va trung va snippets", "viet trung va snippets", "vien trung va snippets", "vi truong va snippets", "vi trang va snippets", "vi trung ha 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 trung va snippets") OR ("using metal java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"vi trung va snippets\") OR (\"using metal java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( vi trung va snippets ) OR ( using metal java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vi trung va snippets") OR ("using metal java snippets"))) OR ("locating bug core snippets"))*.