Perhaps you should try some spelling variations:
"thi cac cong snippets" » "thi cac code snippets", "thi cua cong snippets", "thi cuc cong snippets", "tai cac cong snippets", "thi tac 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"

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 data snippets") or ("thi cac 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 ("thi cac cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using data snippets ) or ( thi cac cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using data snippets") or ("thi cac cong snippets"))) or ("locating bug core snippets"))*.