Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duc dan hoat snippets" » "duc dan code snippets", "duc van hoa snippets", "duc dan hoc snippets", "duc danh hoa snippets", "duoc dan hoat snippets", "duc tan hoat snippets", "duc dai hoat snippets"
"python using java snippets" » "python using data snippets"

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

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