Perhaps you should try some spelling variations:
"nha cau van snippets" » "nha chau van snippets", "nha cuu van snippets", "nha cac van snippets", "nha cao van snippets", "nhu cau van snippets", "nha chu van snippets"
"python using a slippers" » "python using a slippery", "python using a 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using a slippers") OR ("nha cau van snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( python using a slippers ) or ( nha cau van snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using a slippers") or ("nha cau van snippets"))) or ("locating bug code snippets"))*.