Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"dau noi dac snippets" » "cau noi dac snippets", "dang noi dac snippets", "dau cuoi dac snippets", "dau noi da snippets", "dau noi dat snippets", "dau noi dau snippets"

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

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