Perhaps you should try some spelling variations:
"lieu so toan snippets" » "lieu so code snippets", "hieu so toan snippets", "thieu so toan snippets", "lieu hoc toan snippets", "lieu so tan snippets", "lieu so than snippets", "lieu bao 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 ("lieu so 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 (\"lieu so toan snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( lieu so toan snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("lieu so toan snippets"))) OR ("locating bug core snippets"))*.