Perhaps you should try some spelling variations:
"lua cau toan snippets" » "lua cau code snippets", "lua cuu toan snippets", "lua cau hoang snippets", "lua cau thang snippets", "luat cau toan snippets", "cua cau toan snippets", "quan cau toan snippets"
"locating bug core snippets" » "locating bug code 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 ("lua cau toan snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using java snippets\") OR (\"lua cau toan snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( lua cau toan snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("lua cau toan snippets"))) OR ("locating bug core snippets"))*.