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