Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cua dang den snippets" » "cua dang code snippets", "cua cong den snippets", "cua ban den snippets", "cua dan den snippets", "cua dang dan snippets", "cua dang de 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: (((("cua dang den snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua dang den snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cua dang den snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua dang den snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.