Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"quoc doi chi snippets" » "quoc doi code snippets", "cuoc doi chi snippets", "quoc hoi chi snippets", "luoc doi chi snippets", "quoc doi khi 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: (((("quoc doi chi snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc doi chi snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( quoc doi chi snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc doi chi snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.