Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"n2 hoc van snippets" » "n2 hoc dan snippets", "n2 hoc va snippets", "n2 hoc vat snippets", "n2 doc van snippets", "n1 hoc van snippets", "n3 hoc 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: (((("n2 hoc van snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"n2 hoc van snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( n2 hoc van snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets ))*.