Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dac san toan snippets" » "dac san code snippets", "dac van toan snippets", "dac dan toan snippets", "dac manh toan snippets", "dac sac toan snippets", "cac san toan snippets", "dac nhan toan 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: (((("dac san toan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dac san toan snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( dac san toan snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dac san toan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.