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