Perhaps you should try some spelling variations:
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"co ho chieu snippets" » "co theo chieu snippets", "co hoc thieu snippets", "co doi chieu snippets", "co hoc chieu snippets", "co hoi chieu snippets", "co so chieu snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"co ho chieu snippets\") OR (\"python using data snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( co ho chieu snippets ) OR ( python using data snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("co ho chieu snippets") OR ("python using data snippets"))) OR ("locating bug code snippets"))*.