Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung viet so snippets" » "dung viet code snippets", "nang viet so snippets", "cong viet so snippets", "mang viet so snippets", "dung viec so snippets", "dung viet o snippets", "dung viet co 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 viet so 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 viet so snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( dung viet so snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung viet so snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.