Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"xac trinh java snippets" » "xuan trinh java snippets", "xac dinh java snippets", "lap trinh java snippets"
"python using lc snippets" » "python using c snippets", "python using l snippets", "python using low snippets"

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

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