Perhaps you should try some spelling variations:
"mau hoc cong snippets" » "mau hoc code snippets", "mau hoc co snippets", "mau cac cong snippets", "mau hoc dung snippets", "cau hoc cong snippets", "mau ho cong snippets", "mau hop cong 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 ("mau hoc cong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using data snippets") OR ("mau hoc cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using data snippets ) or ( mau hoc cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using data snippets") or ("mau hoc cong snippets"))) or ("locating bug core snippets"))*.