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"
"dac nhan tin snippets" » "cac nhan tin snippets", "danh nhan tin snippets", "ca nhan tin snippets", "dac nhan tinh snippets", "dac nhanh tinh snippets", "dac nhan vien snippets"

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

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