Perhaps you should try some spelling variations:
"thuc dan cong snippets" » "thuc dan code snippets", "thuc hanh cong snippets", "hoc dan cong snippets", "thuc vat cong snippets", "thuc dang cong snippets", "thuc van cong snippets", "thuc dan dong snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw snippets"

Try widening your search to All Fields.

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