Perhaps you should try some spelling variations:
"thuc viet 07 snippets" » "hoc viet 07 snippets", "thuc hien 07 snippets", "thuc vat 07 snippets"
"python using sat slippers" » "python using data slippers", "python using a slippers", "python using raw slippers", "python using sat slippery", "python using sat grippers"
"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: "((((\"thuc viet 07 snippets\") OR (\"python using sat slippers\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( thuc viet 07 snippets ) OR ( python using sat slippers ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("thuc viet 07 snippets") OR ("python using sat slippers"))) OR ("locating bug code snippets"))*.