Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"anh tuan hoc snippets" » "anh tuan code snippets", "anh toan hoc snippets", "anh luan hoc snippets", "anh than 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: (((("anh tuan 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: (((("anh tuan hoc snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( anh tuan hoc snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh tuan hoc snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.