Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luan toan do snippets" » "luan toan code snippets", "luan hoan do snippets", "xuan toan do snippets", "luan thanh do snippets", "luan toan ho snippets", "luan toan co snippets", "luan toan du snippets"
"python using java snippets" » "python using 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: (((("python using java snippets") OR ("luan toan do snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using java snippets\") OR (\"luan toan do snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( luan toan do snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("luan toan do snippets"))) OR ("locating bug core snippets"))*.