Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan tu hoai snippets" » "dan tu code snippets", "dan thu hoai snippets", "dan tu hoa snippets", "dan thi hoai snippets", "danh tu hoai snippets", "dan su hoai snippets", "ban tu hoai snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing 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: (((("dan tu hoai snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dan tu hoai snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( dan tu hoai snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan tu hoai snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))*.