Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"bat va cao snippets" » "bat va code snippets", "ban va cao snippets", "dat va cao snippets", "vat va cao snippets", "bat va cac snippets", "bat va co snippets", "bat va dao 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 missing data snippets") OR ("bat va cao snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python missing data snippets\") OR (\"bat va cao snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( python missing data snippets ) OR ( bat va cao snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python missing data snippets") OR ("bat va cao snippets"))) OR ("locating bug core snippets"))*.