Perhaps you should try some spelling variations:
"do cao hoat snippets" » "do cao code snippets", "do co hoat snippets", "do cao chat snippets", "do dan hoat snippets", "o cao hoat snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing 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 data snippets") OR ("do cao hoat snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using data snippets\") OR (\"do cao hoat snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( python using data snippets ) OR ( do cao hoat snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using data snippets") OR ("do cao hoat snippets"))) OR ("locating bug core snippets"))*.