Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw snippets"
"hoc su trong snippets" » "hoc tu trong snippets", "hoc su trung snippets", "hoc vu trong snippets"

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

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