Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung van son snippets" » "dung van code snippets", "duong van son snippets", "dung va son snippets", "dang van son snippets", "dung van dong snippets", "dung van cong snippets", "dung van sung 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: (((("dung van son snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dung van son snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( dung van son snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung van son snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.