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"
"dao hai duc snippets" » "dao thai duc snippets", "dai hai duc snippets", "do hai duc snippets", "dao hoai duc snippets", "dao mai duc snippets", "dao hai cuc snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dao hai duc snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dao hai duc snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( dao hai duc snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets ))*.